KR20220148700A - Method and apparatus for controlling non-uwb (ultra wide band) device using uwb - Google Patents

Abstract

The present disclosure discloses a method for controlling a non-UWB device using UWB. The method of a first UWB device of the present disclosure may include the steps of: identifying a location of a non-UWB device based on a location of a second UWB device based on UWB ranging between the first UWB device and the second UWB device; and recognizing the non-UWB device based on the pointing direction of the first UWB device and the location of the identified non-UWB device.

Description

Method and apparatus for controlling non-UWB devices using UWB {METHOD AND APPARATUS FOR CONTROLLING NON-UWB (ULTRA WIDE BAND) DEVICE USING UWB}

The present disclosure relates to UWB communication, and more particularly, to a method and apparatus for controlling a non-UWB device using UWB.

The Internet is evolving from a human-centered connection network where humans create and consume information, to an Internet of Things (IoT) network that exchanges and processes information between distributed components such as objects. Internet of Everything (IoE) technology, which combines big data processing technology through connection with cloud servers, etc. with IoT technology, is also emerging. In order to implement the IoT, technology elements such as sensing technology, wired/wireless communication and network infrastructure, service interface technology, and security technology are required. Recently, technologies such as a sensor network, Machine to Machine (M2M), and MTC (Machine Type Communication) for connection between objects are being studied.

In the IoT environment, an intelligent IT (Internet Technology) service that collects and analyzes data generated from connected objects and creates new values in human life can be provided. The IoT is a smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliance, advanced medical service, etc. can be applied in the field of

As various services can be provided with the development of wireless communication systems, a method for effectively providing these services is required. For example, a ranging technique for measuring a distance between electronic devices using Ultra Wide Band (UWB) may be used. UWB is a wireless communication technology that uses a very wide frequency band of several GHz or more in a baseband without using a wireless carrier.

The present disclosure provides a method for identifying the location of a non-UWB device that does not support UWB ranging using UWB ranging between UWB devices. In addition, the present disclosure provides a method for recognizing and controlling a non-UWB device whose location is identified using UWB ranging between UWB devices using the UWB device.

According to various embodiments of the present disclosure, the method of the first UWB device is based on the UWB ranging between the first UWB device and the second UWB device, and a non- (non-) based on the location of the second UWB device. identifying the location of the UWB device; and recognizing the non-UWB device based on the pointing direction of the first UWB device and the identified location of the non-UWB device.

According to various embodiments of the present disclosure, a first UWB device may include a memory; transceiver; and a controller coupled to the memory and the transceiver, the controller comprising: a non based on a location of the second UWB device based on UWB ranging between the first UWB device and a second UWB device - identify the location of the UWB device, and based on the pointing direction of the first UWB device and the identified location of the non-UWB device, may be configured to recognize the non-UWB device.

According to the method of the present disclosure, a location of a non-UWB device that does not support UWB ranging may be identified. In addition, according to the method of the present disclosure, it is possible to recognize and control a non-UWB device using the UWB device.

1 illustrates an exemplary layer configuration of an electronic device supporting a UWB-based service.
2 shows an exemplary configuration of a communication system including an electronic device supporting a UWB-based service.
3 shows an exemplary configuration of a framework included in an electronic device supporting a UWB-based service.
4 illustrates a UWB ranging operation between UWB devices.
5 illustrates a method for a UWB-enabled device to control a non-UWB-enabled device according to an embodiment of the present disclosure.
6A illustrates a registration procedure of a non-UWB device according to an embodiment of the present disclosure.
6B illustrates a registration procedure of a non-UWB device according to another embodiment of the present disclosure.
7 illustrates a procedure for recognizing a non-UWB device according to an embodiment of the present disclosure.
8A illustrates a first embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.
8B illustrates a second embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.
9A illustrates a third embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.
9B illustrates a fourth embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.
9C illustrates a fifth embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.
10 illustrates a method of recognizing a target device based on a distance to a straight line pointed by a user device according to an embodiment of the present disclosure.
11 is a flowchart illustrating a method of a first UWB device according to an embodiment of the present disclosure.
12 is a flowchart illustrating a registration step of a first UWB device according to an embodiment of the present disclosure.
13 is a flowchart illustrating a registration step of a first UWB device according to another embodiment of the present disclosure.
14 is a diagram illustrating a structure of a first electronic device according to an embodiment of the present disclosure.
15 is a diagram illustrating a structure of a first electronic device according to another embodiment of the present disclosure.
16 is a diagram illustrating a structure of a second electronic device according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

In describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present disclosure pertains and are not directly related to the present disclosure will be omitted. This is to more clearly convey the gist of the present disclosure without obscuring the gist of the present disclosure by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

Advantages and features of the present disclosure, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the embodiments of the present disclosure make the present disclosure complete, and common knowledge in the technical field to which the present disclosure belongs It is provided to fully inform those who have the scope of the disclosure, and the present disclosure is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

At this time, it will be understood that each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. It may also be possible for the instructions stored in the flowchart block(s) to produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s). The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It may also be possible for instructions to perform the processing equipment to provide steps for performing the functions described in the flowchart block(s).

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in the blocks to occur out of order. For example, two blocks shown one after another may in fact be performed substantially simultaneously, or it may be possible that the blocks are sometimes performed in a reverse order according to a corresponding function.

In this case, the term '~ unit' used in this embodiment means software or hardware components such as FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and '~ unit' performs certain roles. do. However, '-part' is not limited to software or hardware. '~unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Accordingly, according to some embodiments, '~ part' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and programs. Includes procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card. Also, according to some embodiments, '~ unit' may include one or more processors.

As used herein, the term 'terminal' or 'device' refers to a mobile station (MS), user equipment (UE), user terminal (UT), wireless terminal, access terminal (AT), terminal, subscriber unit. may be referred to as a (Subscriber Unit), Subscriber Station (SS), wireless device, wireless communication device, Wireless Transmit/Receive Unit (WTRU), mobile node, mobile or other terms. . Various embodiments of the terminal include a cellular phone, a smart phone having a wireless communication function, a personal digital assistant (PDA) having a wireless communication function, a wireless modem, a portable computer having a wireless communication function, and a digital camera having a wireless communication function. devices, gaming devices with wireless communication capabilities, music storage and playback appliances with wireless communications capabilities, Internet appliances with wireless Internet access and browsing, as well as portable units or terminals incorporating combinations of such functions. have. In addition, the terminal may include a machine to machine (M2M) terminal and a machine type communication (MTC) terminal/device, but is not limited thereto. In this specification, the terminal may be referred to as an electronic device or simply a device.

Hereinafter, the operating principle of the present disclosure will be described in detail with reference to the accompanying drawings. In the following description of the present disclosure, if it is determined that a detailed description of a related well-known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present disclosure, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Hereinafter, an embodiment of the present disclosure will be described using a communication system using UWB (eg, a UWB communication system defined by FiRa Consotium) as an example, but the embodiment of the present disclosure may also be applied to other communication systems having similar technical backgrounds or characteristics. can For example, a communication system using Bluetooth or ZigBee may be included in this. Accordingly, the embodiments of the present disclosure may be applied to other communication systems through some modifications within a range that does not significantly depart from the scope of the present disclosure as judged by a person having skilled technical knowledge.

In addition, in the description of the present disclosure, if it is determined that a detailed description of a related function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present disclosure, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

In general, wireless sensor network technology is largely divided into a wireless local area network (WLAN) technology and a wireless personal area network (WPAN) technology according to a recognition distance. In this case, the wireless LAN is a technology based on IEEE 802.11, and it is a technology that can connect to a backbone network within a radius of about 100 m. In addition, the wireless private network is a technology based on IEEE 802.15, and includes Bluetooth, ZigBee, and ultra wide band (UWB). A wireless network in which such a wireless network technology is implemented may include a plurality of electronic devices.

UWB may refer to a short-range high-speed wireless communication technology using a wide frequency band of several GHz or more, low spectral density, and short pulse width (1 to 4 nsec) in a baseband state. UWB may mean a band itself to which UWB communication is applied. UWB enables secure and accurate ranging between devices.

The operation of the UWB-based service includes a service initiation step for initiating a UWB-based service, a key provisioning step for providing a key for security, and a discovery step for discovering a device. ), a connection step including secure channel creation and parameter exchange, and/or a UWB ranging step for measuring a distance/direction (angle) between devices.

Meanwhile, depending on the embodiment, some steps may be omitted. For example, in some embodiments, the service initiation phase and the UWB ranging phase may be a mandetory phase, but the key provisioning phase, discovery phase, and connection phase may be optional phases. For another example, in another embodiment, the service initiation phase, the key provisioning phase, and the UWB ranging phase may be a mandetory phase, but the discovery phase and the connection phase may be optional phases.

Specific terms used in the following description are provided to help the understanding of the present disclosure, and the use of such specific terms may be changed to other forms without departing from the technical spirit of the present disclosure.

"Application Dedicated File (ADF)" is, for example, security data (eg, credential, cryptographic key) used in an application or SE (Secure Element) (eg, eSE (embeded SE)) or application specific data (application specific data) may be a data structure that can host (hosting).

"Application Protocol Data Unit (APDU)" may be a command and a response used when communicating with a Secure Element (SE) (eg, embedded SE).

"application specific data" may be, for example, data used by a specific service and application regardless of a location (eg, applet, device, etc.).

"Controller" may be a Ranging Device that defines and controls Ranging Control Messages (RCM) (or control messages). In the present disclosure, the ranging device may be, for example, a RDEV (Ranging Device) or an ERDEV (Enhanced Ranging Device) defined in the IEEE Std 802.15.4/4z standard.

“Controllee” may be a Ranging Device that uses a ranging parameter in an RCM (or a control message) received from the Controller.

"Dynamic STS" may be an operation mode in which STS is not repeated during a ranging session, unlike "Static STS". In one embodiment, the STS may be managed by the Ranging device, and the Ranging Session Key generating the STS may be managed by the Secure Component.

“Applet” may be an Applet that implements an APDU interface running on a Secure Component and is identified by an Application (Applet) ID (AID). This applet can host the data needed for secure ranging. In one embodiment, the Applet may be, for example, a FiRa Applet defined in the FIRA CONSORTIUM COMMON SERVICE & MANAGEMENT LAYER (CSML) specification.

"Ranging Device" is a Ranging Device capable of communicating with another Ranging Device using predefined profiles (eg, UWB-enabled door lock), or a predefined UWB for performing a ranging session with another Ranging Device. It may be a ranging device capable of supporting a ranging service. In this disclosure, the Ranging Device may be referred to as a UWB Device or a UWB Ranging Device. In one embodiment, the Ranging Device may be, for example, a FiRa Device defined in the FIRA CONSORTIUM CSML specification.

"UWB-enabled Application" may be an application using Framework API for configuring OOB Connector, Secure Service, and/or UWB service for UWB session. In this disclosure, "UWB-enabled Application" may be abbreviated as an application or a UWB application. In one embodiment, the UWB-enabled Application may be, for example, a FiRa-enabled Application defined in the FIRA CONSORTIUM CSML specification.

"Framework" may be a collection of logical software components including OOB Connector, Secure Service, and/or UWB service. In one embodiment, the Framework may be, for example, the FiRa Framework defined in the FIRA CONSORTIUM CSML specification.

"OOB Connector" may be a software component for establishing out-of-band (OOB) communication (eg, BLE communication) between Ranging Devices. In one embodiment, the OOB Connector may be, for example, a FiRa OOB Connector defined in the FIRA CONSORTIUM CSML specification.

"Profile" may be a predefined set of UWB and OOB configuration parameters. In one embodiment, the Profile may be, for example, a FiRa Profile defined in the FIRA CONSORTIUM CSML specification.

"Profile Manager" can implement profiles available in Ranging Device. In one embodiment, the Profile Manager may be, for example, a FiRa Profile Manager defined in the FIRA CONSORTIUM CSML specification.

"Smart Ranging Device" may host one or more UWB-enabled Applications, and may be a Ranging Device that can implement a Framework, or a Ranging device that implements a specific service application provided by a manufacturer (eg, a physical access reader). ). The Smart Ranging Device may be a Ranging Device capable of installing multiple UWB-enabled Applications in order to support a UWB ranging-based service to perform a ranging session with another ranging device or a Smart Ranging Device. In one embodiment, the Smart Ranging Device may be, for example, a FiRa Smart Device defined in the FIRA CONSORTIUM CSML specification.

"Global Dedicated File (GDF)" may be a root level of application specific data including data required to establish a USB session.

"Framework API" may be an API used by a UWB-enabled Application to communicate with the Framework.

“Initiator” may be a Ranging Device that initiates a ranging exchange.

"Object Identifier (OID)" may be an identifier of the ADF in the application data structure, or a unique ID that identifies a service provider (SP).

“Out-Of-Band (OOB)” may be data communication that does not use UWB as an underlying wireless technology.

A “Respondent” may be a Ranging Device that responds to an Initiator in a ranging exchange.

“Scrambled Timestamp Sequence (STS)” may be a ciphered sequence for increasing the integrity and accuracy of ranging measurement timestamps. In one embodiment, the STS may be generated from a ranging session key.

"Secure Channel" may be a data channel that prevents overhearing and tampering.

"Secure Component" may be, for example, a component that interfaces with UWBS for the purpose of providing RDS to UWBS when dynamic STS is used. It can also host UWB-enabled Application data.

"Secure Element (SE)" may be a tamper-resistant secure hardware component that can be used as a Secure Component in the Ranging Device.

"Secure Service" may be a component for interfacing with a Secure Component of a system, such as a Secure Element or a Trusted Execution Environment (TEE).

"Static STS" is an operation mode in which the STS is repeated during a session, and does not need to be managed by the Secure Component.

"SUS Applet" may be an Applet on a Secure Component that operates as an end point for a Secure Channel between UWBS and a Secure Component such as SE.

"UWB Service" may be an implementation-specific software component that provides access to UWBS.

"UWB Session" may be considered to be set when the Controller and Controllee(s) can start UWB ranging.

“UWB Session ID” may be an ID (eg, integer) identifying a UWB Session.

"UWB Session Key" may be a key used to protect the UWB Session. In one embodiment, the UWB Session Key may be used to generate the STS. In this disclosure, the UWB Session Key may be a UWB Ranging Session Key (URSK), and may be abbreviated as a session key.

“UWB Subsystem (UWBS)” may be a hardware component implementing the UWB PHY and MAC specifications. UWBS may have an interface to FiRa Framework in which UCI logical interface layer is implemented and an interface to Secure Component to search for RDS. In one embodiment, the UWB PHY and MAC specifications may be, for example, FiRa CONSORTIUM PHY and MAC specifications.

And, in describing the present disclosure, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present disclosure, the detailed description thereof will be omitted.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings.

1 illustrates an exemplary layer configuration of an electronic device supporting a UWB-based service.

The electronic device (UWB device) of FIG. 1 may be an electronic device that supports UWB ranging (eg, UWB secure ranging), for example, a Smart Ranging Device.

Referring to FIG. 1 , the electronic device 100 includes a UWB-enabled Application Layer 110 , a Common Service & Management Layer 120 , and/or a UWB subsystem (UWBS) including a UWB MAC Layer and a UWB Physical Layer ( 130) may be included. According to an embodiment, some layers may not be included in the electric device 100 or an additional layer (eg, a security layer) may be further included.

The UWB-enabled Application Layer may be, for example, a layer of an application (eg, FiRa-enabled Application) that uses a Framework API to configure an OOB Connector, Secure Service, and UWB service for a UWB session.

The Common Service & Management Layer may define, for example, common components and procedures necessary to implement UWB secure ranging.

The UWB MAC Layer and the UWB Physical Layer may be collectively referred to as a UWB subsystem (UWBS). UWBS may be based on the FiRa PHY and MAC specifications referencing the IEEE 802.15.4/4z specification (spec).

2 shows an exemplary configuration of a communication system including an electronic device supporting a UWB-based service.

Referring to FIG. 2 , the communication system 200 includes a first electronic device 210 and a second electronic device 220 . In an embodiment, the first electronic device (the first UWB device) may be, for example, a Smart Ranging Device, and the second electronic device (the second UWB device) may be, for example, a Ranging Device. Both the first electronic device and the second electronic device may support UWB ranging (eg, UWB secure ranging).

The first electronic device may host, for example, one or more UWB-enabled Applications, which may be installed by a user (eg, a mobile phone). It can be based on the Framework API. The second electronic device does not provide the Framework API, and for example, may use a proprietary interface to implement a specific UWB-enabled application provided only by the manufacturer.

Meanwhile, unlike illustrated, according to an embodiment, both the first electronic device and the second electronic device may be a Smart Ranging Device, or both the first electronic device and the second electronic device may be a Ranging Device.

The first electronic device and the second electronic device may include a UWB-enabled Application Layer, Framework, OOB Connector, Secure Component, and/or UWBS. Framework API, Framework, OOB Connector, and/or Secure Component may be included in Framework, and some components may be omitted depending on embodiments.

The first electronic device and the second electronic device may create an OOB connection (channel) through an OOB connector (eg, a BLE connector) and create a UWB connection (channel) through UWBS to communicate with each other.

3 shows an exemplary configuration of a framework included in an electronic device supporting a UWB-based service.

The framework of FIG. 3 may be, for example, the FiRa Framework defined in the FIRA CONSORTIUM CSML standard.

A framework may be a set of logical software components. A UWB-enabled application can interface with the framework through the framework API provided by the framework.

Referring to FIG. 3 , the framework 300 may include a Profile Manager 310 , an OOB Connector 320 , a Secure Service 330 , and/or a UWB Service 340 . However, depending on the embodiment, some components may be omitted or additional components may be further included.

The Profile Manager component can manage the Profile(s) available on the Ranging Device. The Profile may be a set of UWB and OOB configuration parameters required to establish a successful UWB session between Ranging Devices. In addition, Profile Manager can abstract UWB and OOB configuration parameters from UWB-enabled applications.

The OOB Connector component may be a component for establishing an OOB connection between Ranging Devices. OOB Connector can handle Discovery Phase and Connection Phase to provide UWB-based services.

The Secure Service component may play a role of interfacing with a security component such as Secure Element (SE), eSE, or Trusted Execution Environment (TEE). The security component may be a component that interfaces with UWBS to deliver UWB ranging data to UWBS.

SE is a secure security module based on the tamper resistant characteristic, but if the contractual relationship between various entities is not established, there are restrictions in installing and running the application.

The eSE refers to a fixed SE that is fixed and used in an electronic device. The eSE is typically manufactured exclusively for the manufacturer at the request of the terminal manufacturer, and may be manufactured including an operating system and a framework. The eSE remotely downloads and installs an applet-type service control module, and can be used for various security services such as, for example, electronic wallet, ticketing, e-passport, and digital key.

The TEE may be, for example, a S/W-centered security environment that creates a virtual separated environment based on codes supported by a specific chipset (eg, ARM-based). TEE does not have tamper resistant characteristics, but has advantages of large available memory, high speed, and low cost compared to SE. In addition, since various service providers can be used immediately within the range allowed by the mobile manufacturer, it has the advantage of lower complexity between entities compared to SE.

The UWB Service component may be a component that provides access to UWBS.

4 illustrates a UWB ranging operation between UWB devices.

The UWB device of FIG. 4 may be one of the first UWB device and the second UWB device having the configuration/structure of FIGS. 1 to 3 , but is not limited thereto, and may be various types of electronic devices supporting UWB ranging. .

In the embodiment of FIG. 4 , the first electronic device corresponds to a ranging device that initiates a ranging exchange by transmitting a first ranging frame (ranging initiation message). In the present disclosure, the first electronic device may be referred to as an initiator.

The second electronic device corresponds to a ranging device that responds to the ranging start message received from the initiator. In the present disclosure, the second electronic device may be referred to as a responder. In one embodiment, the responder may transmit a ranging response message.

In an embodiment, the first electronic device may be a controller, and the second electronic device may be a controller. The opposite can also be established. Here, the controller may be a ranging device that defines and controls a ranging feature by transmitting a control message. The controller may be a ranging device using a ranging feature set through a control message from a controller.

In an embodiment, the first electronic device and the second electronic device may perform a ranging operation using a preset ranging method. In an embodiment, the ranging method may include a two-way ranging (TWR) method and/or a one-way ranging (OWR) method. In an embodiment, the TWR scheme may include Single-Sided Two-Way Ranging (SS-TWR) and/or Double-Sided Two-Way Ranging (DS-TWR). For such a ranging method, refer to the IEEE 802.15.4/4z standard and the description of FiRa CONSORTIUM referencing it.

Through such a UWB ranging operation, the first electronic device and/or the second electronic device may obtain distance information and direction information, and identify a relative position of the UWB device based on the obtained distance information and direction information.

In an embodiment, the distance information may include Time of Flight (ToF) information (ToF measurement information). ToF corresponds to the UWB propagation time between the transmitter and the receiver. Using accurate message timestamping, ToF can provide an accurate estimate of the relative distance between two devices. ToF information may be measured in one ranging device or both and exchanged between the initiator and the responder through a predefined signaling scheme (eg, a control message including a UWB ranging result).

In an embodiment, the direction information may include Angle of Arrival (AoA) information (AoA measurement information). AoA may be obtained by measuring the difference in the phase difference or arrival time of the arrival signal at the antennas. AoA information may include AoA azimuth (horizontal angle) and AoA elevation (vertical angle). The AoA information may be used together with the ToF information to determine the relative position of the UWB device. AoA information may be measured in one ranging device or both, and exchanged between the initiator and the responder through a predefined signaling scheme (eg, a control message including a UWB ranging result).

In one embodiment, a PHY packet including a ranging frame (eg, a UWB initiation message/response message) may include an STS. Whether the PHY packet includes the STS, the location where the STS is included, and the structure of the packet may vary depending on the STS packet configuration. Here, the STS corresponds to an encrypted sequence used to increase the integrity and accuracy of the ranging measurement timestamp. When STS is used, the initiator and responder must share the STS seed (eg, ranging session key) used to generate and restore the STS in advance. The sharing of the ranging session key may be performed through a secure channel established through BLE, for example.

Hereinafter, various embodiments of a method for registering and recognizing a non-UWB device (device) using UWB ranging between UWB enabled devices (devices) will be described with reference to each drawing.

In the present disclosure, it is assumed that one of the UWB supporting devices is a reference device (eg, a TV) supporting UWB ranging and the other is a user device (eg, a user's smart phone) that supports UWB ranging. Various embodiments of the disclosure are described. However, the present invention is not limited thereto, and the UWB supporting device may be various electronic devices supporting UWB ranging. In an embodiment, the reference device and the user device may be one of the first UWB device or the second UWB device described above with reference to FIGS. 1 to 4 . For example, the reference device and the user device may correspond to or include an RDEV or an ERDEV.

In the present disclosure, a user equipment supporting UWB ranging may be referred to as a UWB user equipment, a user equipment, a first UWB support device, a first UWB device, or a first UWB device. Also, the reference device supporting UWB ranging may be referred to as a UWB reference device or reference device, a second UWB support device, a second UWB device, or a second UWB device.

In the present disclosure, a non-UWB device is a device to be controlled by a UWB supported device (eg, user device), and may be referred to as a target (target) device, a non-UWB device, or a non-UWB device. .

5 illustrates a method for a UWB-enabled device to control a non-UWB-enabled device according to an embodiment of the present disclosure.

In the embodiment of FIG. 5 , the UWB user device 10 (eg, the user's smart phone) uses the UWB ranging result with the UWB reference device 20 (eg, TV) to use the UWB non-supporting device (target device 30 ). )) (eg, an air conditioner), and a method for controlling it is disclosed. In an embodiment, the UWB ranging operation between the user device 10 and the reference device 20 may follow the UWB ranging operation of FIG. 4 . For example, the UWB ranging operation of the TWR method of FIG. 4 may be performed. In this case, the user device 10 may act as an initiator, and the reference device 20 may act as a responder. Also, the reverse case is also possible.

5 , the user device 10 does not need to measure the distance between the user device 10 and the target device 30 in order to point and control the target device 30 . That is, the user device 10 does not need to perform a ranging procedure for measuring a distance (eg, ToF measurement) with the target device 30 .

Instead, the user device 10 may perform the registration and recognition procedure of the target device 30 using the UWB ranging result with the reference device 20 . Through this, the user device 10 uses a ranging procedure (eg, UWB ranging) to measure/calculate the distance between the user device 10 and the target device 30 directly, even if the target device 30 is not measured. Pointing and controllable. In this case, the user device 10 can control the non-UWB-supported device, thereby extending the user experience using UWB.

Hereinafter, various embodiments of the registration and recognition procedure of the target device 30 will be described with reference to each drawing.

<Embodiment A of registration procedure: An embodiment of registering a target device (non-UWB device) using one user device (UWB device)>

6A illustrates a registration procedure of a non-UWB device according to an embodiment of the present disclosure.

In the embodiment of FIG. 6A , the registration procedure (step) corresponds to a procedure (step) for identifying (or determining) the location of a non-UWB device (target device 30 ). In order to identify the location of the target device 30 in the registration procedure, a UWB ranging result between UWB-enabled devices (user device 10/reference device 20) may be used. In one embodiment, the registration procedure may be performed by the user device 10 . However, the present invention is not limited thereto, and according to embodiments, the registration procedure may be performed by the reference device 20 .

Figure 6a (a) shows a first option of the registration procedure. The first option is that the user device 10 is positioned at a predetermined distance d from the target device 30 , and a guide (user guide) for pointing the target device 30 is provided through the location of the target device 30 . It corresponds to a method of identifying An exemplary method of the first option is described below with reference to FIG. 8A .

6a(b) shows a second option of the registration procedure. The second option is to provide a guide for positioning the user device 10 in a specific location/area of the target device 30 (eg, to position the user device 10 close to the front and center of the target device 30 ). This corresponds to a method of identifying the location of the target device 30 through a guide provided. In one embodiment, the second option may be one of specific embodiments of the first option. For example, the second option may be a specific embodiment of the first option in which the distance d of the first option is set to zero or a value close to zero.

6a(c) shows a third option of the registration procedure. A sixth option is to determine the location of the target device 30 by providing a guide to point the target device 30 (or a specific location/region of the target device 30 ) while changing the location of the user device 10 . It is a method of identification. In the embodiment of FIG. 6A ( c ), the user device 10 needs to point the target device 30 at at least two positions. The number of positions at which the user device 10 points to the target device 30 may vary according to settings. As the number of such pointing positions increases, the accuracy of the identified positions of the target device 30 increases, but the time required for the registration process increases. Accordingly, an appropriate number of pointing positions needs to be set. An exemplary method of the third option is described below with reference to FIG. 8B .

Meanwhile, compared to the third option, the first option and the second option have an advantage in that the location accuracy of the target device 30 is lowered, but the time required for registration is short.

<Embodiment B of registration procedure: An embodiment of registering a target device (non-UWB device) using a plurality of user devices (UWB devices)>

6B illustrates a registration procedure of a non-UWB device according to another embodiment of the present disclosure.

In the embodiment of FIG. 6B , the registration procedure (step) corresponds to a procedure (step) for identifying (or determining) the location of a non-UWB device (target device 30 ). In order to identify the location of the target device 30 in the registration procedure, a UWB ranging result between UWB supporting devices may be used. For example, the UWB ranging result between the plurality of user devices 10-1 and 10-2 and the reference device 20 and the UWB ranging result between the plurality of user devices 10-1 and 10-2 may be used. can As an embodiment, the UWB ranging result may include distance information and/or angle information (eg, AoA information) between two UWB devices.

In an embodiment, the registration procedure may be performed by a plurality of user devices 10 - 1 and 10 - 2 . However, the present invention is not limited thereto, and according to embodiments, the registration procedure may be performed by the reference device 20 .

Figure 6b(a) shows a fourth option of the registration procedure. The fourth option corresponds to a method of identifying the location of the target device 30 when only one user device 10 - 1 among the plurality of user devices 10 - 1 and 10 - 2 points to the target device 30 . do. An exemplary method of the fourth option is described below with reference to FIG. 9A.

Figure 6b(b) shows a fifth option of the registration procedure. A fifth option is a method of identifying the location of the target device 30 when the plurality of user devices 10 - 1 and 10 - 2 point to the target device 30 , but there is no intersection toward the target device 30 . corresponds to An exemplary method of the fifth option is described below with reference to FIG. 9B.

Figure 6b(c) shows a sixth option of the registration procedure. A sixth option is a method of identifying the location of the target device 30 when a plurality of user devices 10 - 1 and 10 - 2 point to the target device 30 and there is an intersection toward the target device 30 . corresponds to An exemplary method of the sixth option is described below with reference to FIG. 9C .

Meanwhile, in the embodiment of FIG. 6B , a case in which there are two user devices for the registration procedure has been described as an example, but the embodiment is not limited thereto. For example, even when there are three or more user devices, the above-described options of the registration procedure may be applied.

7 illustrates a procedure for recognizing a non-UWB device according to an embodiment of the present disclosure.

In the embodiment of FIG. 7 , the recognition procedure (step) is a UWB non-supporting device (target device 30 ) to which the user device 10 is registered (eg, a target registered according to one of the schemes (optional) of FIGS. 6A/B ) It corresponds to a procedure (step) for identifying (or determining) whether to point the device 30) for control. That is, it corresponds to a procedure for recognizing the target device 30 to be controlled through pointing. In the recognition procedure, in order to identify the current location of the user device 10 , a UWB ranging result between UWB supporting devices (user device 10/reference device 20 ) may be used.

The recognition procedure may include two steps, for example, a first step shown in FIG. 7(a) and a second step shown in FIG. 7(b) . In one embodiment, the recognition procedure may be performed by the user device 10 . However, the present invention is not limited thereto, and the recognition procedure may be performed by the reference device 20 according to embodiments.

The first step corresponds to a step of identifying (or calculating) the distance h between the target device 30 and the linear component in the pointing direction of the user device 10 . An exemplary method for calculating the distance h is described below with reference to FIG. 10 .

The second step corresponds to a step in which the user device 10 recognizes the target device 30 by identifying (or determining) whether the distance h satisfies a preset threshold. In an embodiment, the second step is determining whether the distance h is less than a threshold (determining whether the recognition condition is satisfied), if the distance h is less than (or less than or equal to) the threshold, the user device 10 ) is the step of recognizing the target device 30 as pointing (recognizing the target device 30) and if the distance h is greater than or equal to (or greater than) the threshold, the user device 10 sets the target device 30 It may include a step of not recognizing as pointing to .

In an embodiment, the threshold may be set with different criteria/conditions/methods according to options used in the registration procedure of the target device 30 . For example, if the registration procedure of option 1 is used, the threshold may be set based on the guided distance d. For example, 1/2 of the distance d may be set as the value of the threshold. As another example, if the registration procedure of option 3 is used, the threshold may be set based on the number of pointing positions. For example, when the number of pointing positions increases, the value of the threshold may be set to decrease. For example, the threshold value when the number of pointing positions is 3 may be set to a smaller value than the threshold value when the number of pointing positions is 2. This is because the positional accuracy of the target device 30 increases as the number of pointing positions increases, so even if the threshold value for the large number of pointing positions is set to a small value, the recognition accuracy is not greatly affected. to be.

In an embodiment, the threshold may be set differently according to the type and/or size (or area) of the target device 30 to be registered. For example, in the case of a target device having a relatively large size (or area) compared to other devices, a threshold value relatively larger than that of other devices may be set as the threshold value of the target device. Through this, device recognition may be aided.

In an embodiment, the type and/or size (or area) of the target device 30 may be identified based on a user input received within or before the registration process (step) described above. For example, before or within the registration step, the user may select the type and size (or area) of the target device 30 to be registered as a user input. For another example, before the registration step or within the registration step, the user may select only the type of the target device 30 to be registered as a user input. In this case, the area of the target device 30 may be identified based on the type of the selected target device 30 .

In an embodiment, when the recognized target device 30 is present, the user device 10 may provide control information for controlling the target device 30 to the user (eg, display a control UX).

7B shows that only one target device 30 satisfies the threshold (satisfying the recognition condition), and the other target devices 40 do not satisfy the threshold (does not satisfy the recognition condition). Although an embodiment is shown, the present invention is not limited thereto. According to an embodiment, there may be a plurality of target devices 30 that satisfy the threshold (recognition condition is satisfied). That is, a plurality of target devices 30 may be recognized simultaneously. In this case, the user device 10 may provide (eg, display) a list of a plurality of recognized target devices 30 to the user. Through this, the user can select and control the target device 30 that the user wants to control from among the plurality of target devices 30 .

8A illustrates a first embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.

The embodiment of FIG. 8A shows an example of a registration procedure according to the first option or the second option of the registration procedure shown in FIG. 6A(a) or 6A(b).

미터 이내에서 대상 기기(30)를 포인팅하도록 하는 가이드(사용자 가이드)가 사용자에게 제공된 것으로 가정한다.In the embodiment of FIG. 8A , from the target device 30

It is assumed that a guide (user guide) for pointing the target device 30 within a meter is provided to the user.

In the registration procedure of FIG. 8A , a step of identifying the location of the user device 10 based on the location of the reference device 20 (a first step (operation)), the user pointing based on the location of the user device 10 Identifying the location of the target device 30 (second step (operation)) and/or identifying the location of the target device 30 based on the location of the reference device 20 (third step (operation)) ) may be included. In one embodiment, the second step (operation) and the third step (operation) may be performed in one step.

Through this registration procedure, the location of the target device 30 may be identified based on the location (reference location) of the reference device 20 . The identified location of the target device 30 may be stored and used in a subsequent recognition procedure.

In the embodiment of FIG. 8A , it is assumed that the position on the xy plane of the reference device 20 is (0,0,0).

Step 1 (action)

In an embodiment, the first step (operation) may be performed using UWB ranging between the user device 10 and the reference device 20 . For example, the UWB two-way ranging (TWR) scheme described with reference to FIG. 4 may be used.

) 및 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 사용자 기기(10) 간의 수평 각도(AoA azimuth (

)) 및 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 사용자 기기(10) 간의 수직 각도(AoA elevation (

))가 획득될 수 있다.As a result of this UWB ranging, distance information indicating the distance between the reference device 20 and the user device 10 (eg, ToF information) and a direction indicating the angle between the reference device 20 and the user device 10 (angle) ) information (eg, AoA information including (AoA azimuth (horizontal angle) and/or AoA elevation (vertical angle)) may be obtained. For example, as shown in FIG. , through UWB ranging, the distance between the reference device 20 and the user device 10 in three dimensions (

) and the horizontal angle between the reference device 20 and the user device 10 with respect to the reference device 20 (AoA azimuth (

)) and the vertical angle between the reference device 20 and the user device 10 with respect to the reference device 20 (AoA elevation (

)) can be obtained.

)가 결정될 수 있다. 예를 들면, 다음 수학식 1에 기초하여, 사용자 기기(10)의 위치가 결정될 수 있다.Based on the distance information and direction information, the location of the user device 10 with respect to the location of the reference device 20 (

) can be determined. For example, the location of the user device 10 may be determined based on Equation 1 below.

[Equation 1]

는 레퍼런스 기기(20)를 기준으로 하는 사용자 기기(10)와 레퍼런스 기기(20) 간의 수평 각도를 나타낸다.

는 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 사용자 기기(10) 사이의 수직 각도를 나타낸다.here,

denotes a horizontal angle between the user device 10 and the reference device 20 with respect to the reference device 20 .

denotes a vertical angle between the reference device 20 and the user device 10 with respect to the reference device 20 .

는 레퍼런스 기기(20)와 사용자 기기(10) 간의 2차원 거리를 나타낸다. 이는 3차원 거리

에 대응하는 직선을

를 기초로 2차원 (xy 평면)으로 투영함으로써 획득될 수 있다. 이는 도 8a(b)에 예시된 바와 같다.here,

denotes a two-dimensional distance between the reference device 20 and the user device 10 . This is a three-dimensional distance

a straight line corresponding to

It can be obtained by projecting in two dimensions (xy plane) based on . This is as illustrated in Fig. 8a(b).

Step 2 (action)

로 표시될 수 있다. 이러한 기울기 (

)를 통해 사용자 기기(10)를 기준으로 하는 대상 기기(30)의 위치가 식별될 수 있다.In an embodiment, the second step (operation) may be performed using a sensor (eg, a (gravity) acceleration sensor) of the user device 10 . For example, the acceleration sensor may be used in the second step to obtain a tilt (eg, a tilt with respect to the ground) of the user device 10 pointing to the target device 30 . In the present disclosure, the slope is

can be displayed as These slopes (

), the location of the target device 30 with respect to the user device 10 may be identified.

Step 3 (action)

)가 결정될 수 있다.In the third step (operation), the position of the target device 30 with respect to the position of the reference device 20 (

) can be determined.

In an embodiment, the user device 10 may use the result of the first step and the result of the second step to determine the location of the target device 30 based on the location of the reference device 20 . For example, the location of the target device 30 may be determined based on Equation 2 below.

[Equation 2]

는 사용자 기기(10)와 대상 기기(30) 간의 2차원 거리를 나타낸다. 이는 사용자 기기(10)와 대상 기기(30) 간의 3차원 거리

에 대응하는 직선을 기울기

를 기초로 2차원(xy 평면)으로 투영함으로써 획득될 수 있다. 이는 도 8a(c)에 예시된 바와 같다.here,

denotes a two-dimensional distance between the user device 10 and the target device 30 . This is a three-dimensional distance between the user device 10 and the target device 30 .

slope the line corresponding to

It can be obtained by projecting in two dimensions (xy plane) based on . This is as illustrated in Fig. 8a(c).

는 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 대상 기기(30) 간의 수평 각도를 의미한다. 예를 들면, 다음 수학식 3에 기초하여,

가 결정될 수 있다.here,

denotes a horizontal angle between the reference device 20 and the target device 30 with respect to the reference device 20 . For example, based on Equation 3 below,

can be determined.

[Equation 3]

는 사용자 기기(10)를 기준으로 하는 사용자 기기(10)와 레퍼런스 기기(20) 간의 수평 각도를 나타낸다. 실시예로서,

는 사용자 기기(10)와 레퍼런스 기기(20) 간의 상술한 UWB 레인징의 결과로서 획득될 수 있다.here,

denotes a horizontal angle between the user device 10 and the reference device 20 with respect to the user device 10 . As an example,

may be obtained as a result of the above-described UWB ranging between the user device 10 and the reference device 20 .

) 역시, 대상 기기(30)의 위치로 식별될 수 있다.In the case of the embodiment of FIG. 8A , as described above, for the registration procedure, the user device 10 is guided to be located within a predefined distance d. In this case, since it is difficult for the user device 10 to be located at a distance completely coincident with the distance d, it may be difficult to determine the exact location of the target device. This may cause a recognition error of the target device 30 . Accordingly, in order to reduce the recognition error, all locations located on a straight line pointed by the user device 10 and within a predetermined range from the distance d may be determined as locations of the target device. That is, the location of the target device may not be specified as a single point, but may be specified as an area satisfying the above condition. For example, the position (

) may also be identified by the location of the target device 30 .

8B illustrates a second embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.

The embodiment of FIG. 8B shows an example of a registration procedure according to the third option of the registration procedure shown in FIG. 6A(c).

In the embodiment of FIG. 8B , it is assumed that a guide (user guide) for allowing the user device 10 to point to the target device 30 at at least two positions is provided to the user device 10 (user).

The registration procedure of FIG. 8B includes a step of identifying the location of the user device 10 based on the location of the reference device 20 (a first step (operation)), and the user device 10 based on the location of the user device 10 . Identifying the location of the target device 30 pointed to by ) (second step (operation)) and/or identifying the location of the target device 30 based on the location of the reference device 20 (third step) step (action)). In one embodiment, the second step (operation) and the third step (operation) may be performed in one step (operation).

Through this registration procedure, the location of the target device 30 may be identified based on the location (reference location) of the reference device 20 . The identified location of the target device 30 may be stored and used in a subsequent recognition procedure.

In the embodiment of FIG. 8B , it is assumed that the position of the reference device 20 on the xy plane is (0,0,0).

Step 1 (action)

In an embodiment, the first step (operation) may be performed using UWB ranging between the user device 10 and the reference device 20 at each location. For example, the user device 10 may perform a UWB ranging operation with the reference device 20 at a first location, and may perform a UWB ranging operation with the reference device 20 at a second location, respectively. In this case, the ranging operation used corresponds to the same operation as the ranging operation of the first step of FIG. 8A . For example, the UWB TWR method described with reference to FIG. 4 may be used in the same manner. Accordingly, the operation of the first step of FIG. 8B refers to the description of the operation of the first step of FIG. 8A (eg, Equation 1 and the corresponding description).

) 및 사용자 기기(10)의 제2 위치(

)가 각각 획득될 수 있다.As a result of the ranging in each of these positions, as in FIG. 8B ( a ), the first position (

) and the second location of the user device 10 (

) can be obtained respectively.

Step 2 (action)

로 표시될 수 있고, 제2 위치에서 획득된 사용자 기기(10)의 기울기는

로 표시될 수 있다. 이러한 각 기울기를 통해, 각 위치에서 사용자 기기(10)를 기준으로 하는 대상 기기(30)의 위치가 식별될 수 있다.In an embodiment, the second step (operation) may be performed using a sensor (eg, a (gravity) acceleration sensor) of the user device 10 . For example, the acceleration sensor may be used in the second step to obtain a tilt (eg, a tilt with respect to the ground) of the user device 10 pointing to the target device 30 . In the embodiment of FIG. 8B , the user device 10 may obtain each inclination using an acceleration sensor at each location. As shown in Fig. 8b(c), the inclination of the user device 10 obtained at the first position is

It may be expressed as , and the inclination of the user device 10 obtained at the second position is

can be displayed as Through each of these inclinations, the location of the target device 30 with respect to the user device 10 at each location may be identified.

Step 3 (action)

)가 결정될 수 있다.In the third step (operation), the position of the target device 30 with respect to the position of the reference device 20 (

) can be determined.

)를 획득할 수 있다. 이는 도 8b(b)에 예시된 바와 같다. 이렇게 xy 평면 상으로 투영하는 이유는 3차원 상에서는 교점이 직접적으로 계산되기 어려울 수 있기 때문이다.In an embodiment, the user device 10 projects the first position and the second position of the user device 10 on the xy plane, and a straight line pointing to the target device 30 at the first position on the xy plane and the second By calculating the intersection of a straight line pointing to the target device 30 at the location, the xy coordinates of the target device 30 (

) can be obtained. This is as illustrated in Fig. 8b(b). The reason for this projection onto the xy plane is that it may be difficult to directly calculate the intersection point in 3D.

)를 기준으로 계산된, 레퍼런스 기준 대상 기기(30)의 위치(제1 좌표)가 획득될 수 있다. 또한, 사용자 기기(10)의 xy 평면에 투영된 제2 위치(

)를 기준으로 계산된, 레퍼런스 기준 대상 기기(30)의 위치(제2 좌표)가 획득될 수 있다. 이러한 각 위치(좌표)의 획득은 도 8a의 수학식 2 및 해당 설명을 따를 수 있다. 다만, 도 8b의 실시예의 경우, 도 8a의 실시예와 달리, 사용자 기기(10)의 제1 위치와 대상 기기(30)의 거리 및 사용자 기기(10)의 제2 위치와 대상 기기(30)의 거리가 상수로 설정되는 것이 아니기 때문에, 획득된 제1 좌표 및 제2 좌표는 각각 제1 위치 및 제2 위치에서 대상 기기(30)를 포인팅하는 직선 상의 모든 좌표에 해당된다. 따라서, 이렇게 결정된 제1 좌표를 이루는 직선과 제2 좌표를 이루는 직선의 교점을 획득함으로써, 대상 기기(30)의 x,y 좌표(

)를 획득할 수 있다.At this time, the first location projected on the xy plane of the user device 10 (

), a position (first coordinate) of the reference reference target device 30 calculated based on the reference reference target device 30 may be obtained. In addition, the second position projected on the xy plane of the user device 10 (

), the position (second coordinate) of the reference reference target device 30 calculated based on the reference reference target device 30 may be obtained. Acquisition of each of these positions (coordinates) may follow Equation 2 of FIG. 8A and the corresponding description. However, in the case of the embodiment of FIG. 8B , unlike the embodiment of FIG. 8A , the distance between the first location of the user device 10 and the target device 30 , and the second location of the user device 10 and the target device 30 . Since the distance of is not set as a constant, the obtained first and second coordinates correspond to all coordinates on a straight line pointing the target device 30 at the first and second positions, respectively. Therefore, by obtaining the intersection of the straight line constituting the first coordinate and the straight line constituting the second coordinate determined in this way, the x, y coordinates of the target device 30 (

) can be obtained.

)를 획득할 수 있다. 예를 들면, 사용자 기기(10)는 두 개 이상의 교점의 중간 값을 계산하고, 이를 대상 기기(30)의 xy 좌표(

)로 결정할 수 있다.Meanwhile, the above description assumes that the user device 10 points to the target device at two locations, but as described above, an embodiment in which the user device 10 points to the target device at three or more locations is also possible. . In this case, two or more intersections may exist. Therefore, by determining one intersection point from two or more intersection points, the x,y coordinates of the target device 30 (

) can be obtained. For example, the user device 10 calculates an intermediate value of two or more intersection points, and calculates the xy coordinate (

) can be determined.

및/또는

를 기초로 3차원 상에서의 대상 기기(30)의 z 좌표 (

)가 획득될 수 있다. 이는 도 8b(c)에 예시된 바와 같다.Next, the slope

and/or

Based on the z coordinate of the target device 30 in three dimensions (

) can be obtained. This is as illustrated in Fig. 8b(c).

9A illustrates a third embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.

The embodiment of Fig. 9A shows an example of a registration procedure according to the fourth option of the registration procedure, shown in Fig. 6B(a).

In the embodiment of FIG. 9A , it is assumed that only the first user device 10 - 1 points to the target device 30 . In addition, the first user device 10 - 1 may perform UWB ranging with the reference device 20 as well as with the second user device 10 - 2 . Accordingly, data (information) obtained as a result of UWB ranging between the first user equipment 10 - 1 and the second user equipment 10 - 2 may be used for positioning the target device 30 . For example, the direction (angle) information (eg, AoA information) obtained as a result of UWB ranging between the first user equipment 10-1 and the second user equipment 10-2 is the target device 30 may be used to obtain essential direction (angle) information (eg, essential AoA information) for positioning of .

The registration procedure of FIG. 9A includes an operation of identifying the location of the first user device 10-1 based on the location of the reference device 20 (a first operation), and the location of the first user device 10-1 based on the location of the first user device 10-1. An operation of identifying the location of the target device 30 pointed to by the user (second operation) and/or an operation of identifying the location of the target device 30 based on the location of the reference device 20 (third operation) may include

Through this registration procedure, the location of the target device 30 may be identified based on the location (reference location) of the reference device 20 . The identified location of the target device 30 may be stored and used in a subsequent recognition procedure.

In the embodiment of FIG. 9A , it is assumed that the position on the xy plane of the reference device 20 is (0,0,0).

first action

In an embodiment, the first operation may be performed using UWB ranging between the first user device 10 - 1 and the reference device 20 . For example, the UWB two-way ranging (TWR) scheme described with reference to FIG. 4 may be used.

) 및 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 제1 사용자 기기(10-1) 간의 수평 각도(AoA azimuth (

)(도 9a의 각도 (1))) 및 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 제1 사용자 기기(10-1) 간의 수직 각도(AoA elevation (

))가 획득될 수 있다.As a result of this UWB ranging, distance information indicating the distance between the reference device 20 and the first user device 10 - 1 (eg, ToF information) and the angle between the reference device 20 and the user device 10 are obtained. Direction (angle) information indicated (eg, AoA (angle of arrival) information including AoA azimuth (horizontal angle) and/or AoA elevation (vertical angle)) may be acquired. For example, through UWB ranging , the distance between the reference device 20 and the first user device 10 - 1 in three dimensions (

) and the horizontal angle between the reference device 20 and the first user device 10-1 with respect to the reference device 20 (AoA azimuth (

) (angle (1) in FIG. 9A )) and the vertical angle (AoA elevation ( ) between the reference device 20 and the first user device 10-1 with respect to the reference device 20 ).

)) can be obtained.

)가 결정될 수 있다. 예를 들면, 상술한 수학식 1에 기초하여, 제1 사용자 기기(10-1)의 위치가 결정될 수 있다.Based on the distance information and direction information, the location of the first user device 10 - 1 with respect to the location of the reference device 20 (

) can be determined. For example, the location of the first user device 10 - 1 may be determined based on Equation 1 described above.

second action

로 표시될 수 있다. 이러한 기울기 (

)를 통해 제1 사용자 기기(10-1)를 기준으로 하는 대상 기기(30)의 위치가 식별될 수 있다.In an embodiment, the second operation may be performed using a sensor (eg, a (gravity) acceleration sensor) of the first user device 10 - 1 . For example, the acceleration sensor may be used in the second step to obtain a tilt (eg, a tilt relative to the ground) of the first user device 10 - 1 pointing to the target device 30 . In the present disclosure, the slope is

can be displayed as These slopes (

), the location of the target device 30 with respect to the first user device 10 - 1 may be identified.

3rd action

)가 결정될 수 있다.In the third operation, the position of the target device 30 based on the position of the reference device 20 (

) can be determined.

In an embodiment, the first user device 10 - 1 uses the result of the first step and the result of the second step to determine the location of the target device 30 based on the location of the reference device 20 . Available. For example, the first user device 10 - 1 may determine the location of the target device 30 based on Equations 2 and 3 described above.

는 레퍼런스 기기(20)를 기준으로 하는 레퍼런스 기기(20)와 대상 기기(30) 간의 수평 각도를 의미한다. 이

는 수학식 3과 같이, 제1 사용자 기기(10-1)를 기준으로 하는 제1 사용자 기기(10-1)와 레퍼런스 기기(20) 간의 수평 각도(

)(도 9a의 각도 (8))에 기초하여 결정될 수 있다.As described above, in Equation 2

denotes a horizontal angle between the reference device 20 and the target device 30 with respect to the reference device 20 . this

is a horizontal angle between the first user device 10-1 and the reference device 20 with respect to the first user device 10-1,

) (angle (8) in FIG. 9A).

는 제1 사용자 기기(10-1)와 레퍼런스 기기(20) 간의 UWB 레인징의 결과로부터 직접 획득될 수 있다.In one embodiment,

may be directly obtained from a result of UWB ranging between the first user device 10 - 1 and the reference device 20 .

는 제1 사용자 기기(10-1)와 제2 사용자 기기(10-2) 간의 UWB 레인징의 결과로부터 획득된 데이터를 보조 정보로서 이용하여 획득될 수 있다. 상황에 따라,

가 제1 사용자 기기(10-1)와 레퍼런스 기기(20) 간의 UWB 레인징의 결과로부터 직접 획득되기 어려울 수 있다. 이 경우,

는 제1 사용자 기기(10-1)와 제2 사용자 기기(10-2) 간의 UWB 레인징의 결과를 이용하여, 예컨대, 아래 수학식 4에 기초하여 획득될 수 있다.In another embodiment,

may be obtained by using data obtained from a result of UWB ranging between the first user equipment 10 - 1 and the second user equipment 10 - 2 as auxiliary information. Depending on the situation,

It may be difficult to obtain directly from the result of UWB ranging between the first user device 10 - 1 and the reference device 20 . in this case,

may be obtained using the result of UWB ranging between the first user equipment 10-1 and the second user equipment 10-2, for example, based on Equation 4 below.

[Equation 4]

Each parameter of Equation 4 will be described as follows.

Line segment a: A line segment connecting the position of the reference device 20 and the position of the first user device 10 - 1

Line segment b: a line segment connecting the position of the first user device 10-2 and the position of the second user device 10-2

Line segment c: A line segment connecting the position of the second user device 10 - 3 and the position of the reference device 20 .

Angle (1): an angle between the reference device 20 and the first user device 10 - 1 with respect to the reference device 20 .

Angle (2): An angle between the reference device 20 and the second user device 10 - 2 with respect to the reference device 20 .

angle (3): the angle between segment c and segment a

Angle (4): an angle between the second user device 10-2 and the reference device 20 with respect to the second user device 10-2

Angle (5): an angle between the second user device 10-2 and the first user device 10-1 with respect to the second user device 10-2

Angle (6) is the angle between segment b and segment c

Angle (7): an angle between the first user device 10-1 and the second user device 10-2 with respect to the first user device 10-1

Angle (8): an angle between the first user device 10-1 and the reference device 20 with respect to the first user device 10-1

angle (9): the angle between segment a and segment b

)은 각도 (7)과 각도 (9)의 차이에 기초하여 획득될 수 있다. 또한, 각도 (9)는 각도 (3) 및 각도 (6)에 기초하여 획득될 수 있다. 또한, 각도 (3)은 각도 (1) 및 각도 (2)에 기초하여 획득될 수 있고, 각도 (6)은 각도 (4)와 각도 (5)에 기초하여 획득될 수 있다.Referring to Equation 4, the angle (8)(

) can be obtained based on the difference between the angle (7) and the angle (9). Also, angle (9) can be obtained based on angle (3) and angle (6). Also, angle (3) may be obtained based on angle (1) and angle (2), and angle (6) may be obtained based on angle (4) and angle (5).

As an embodiment, the angle 1 may be obtained based on a result of UWB ranging between the first user device 10 - 1 and the reference device 20 .

As an embodiment, angles (2) and (4) may be obtained based on a result of UWB ranging between the second user device 10 - 2 and the reference device 20 .

As an embodiment, angles (5) and (7) may be obtained based on a result of UWB ranging between the first user equipment 10 - 1 and the second user equipment 10 - 2 .

In summary, in the case of the fourth option of the registration procedure, for positioning the target device 30 , AoA information (angle (1) and angle (8)) between the reference device 20 and the first user device 10 - 1 ) is used as an AoA essential element. In this case, both the angle (1) and the angle (8) may be obtained only as a result of UWB ranging between the reference device 20 and the first user device 10 - 1 , but depending on the situation, the angle (8) may not be obtained only as a result of UWB ranging between the reference device 20 and the first user device 10 - 1 . In this case, the first user equipment 10 - 1 uses the AoA information obtained as a result of UWB ranging between the first user equipment 10 - 1 and the second user equipment 10 - 2 as auxiliary information, for example, , the angle (8) may be obtained based on Equation 4 described above.

9B illustrates a fourth embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.

The embodiment of FIG. 9B shows an example of a registration procedure according to the fifth option of the registration procedure, shown in FIG. 6B(b).

In the embodiment of FIG. 9B , a plurality of user devices (eg, the first user device 10 - 1 and the second user device 10 - 2 ) point to the target device 30 , but It is assumed that there is no intersecting point going. Also, the first user device 10 - 1 and the second user device 10 - 2 may not only perform UWB ranging with the reference device 20 , but may also perform UWB ranging with each other. Accordingly, data (information) obtained as a result of UWB ranging between the first user equipment 10 - 1 and the second user equipment 10 - 2 may be used for positioning the target device 30 . For example, distance information and direction (angle) information (eg, AoA information) obtained as a result of UWB ranging between the first user equipment 10-1 and the second user equipment 10-2 are first It may be used to calculate a distance between the user device 10 - 1 and the second user device 10 - 2 and the target device 30 .

The registration procedure of FIG. 9B is an operation of identifying the positions of the first user device 10-1 and the second user device 10-2 based on the position of the reference device 20 (first operation), in two dimensions The method may include an operation of obtaining coordinates of the target device 30 (a second operation) and/or an operation of obtaining coordinates of the target device 30 in three dimensions (a third operation).

Through this registration procedure, the location of the target device 30 may be identified based on the location (reference location) of the reference device 20 . The identified location of the target device 30 may be stored and used in a subsequent recognition procedure.

In the embodiment of FIG. 9B , it is assumed that the position on the xy plane of the reference device 20 is (0,0,0).

first action

In an embodiment, the first operation is a result of UWB ranging between the first user device 10 - 1 and the reference device 20 and UWB ranging between the second user device 10 - 2 and the reference device 20 . can be performed using For example, the UWB two-way ranging (TWR) scheme described with reference to FIG. 4 may be used. Each user device 10-1, 10-2 determines the location of each user device 10-1, 10-2 based on the location of the reference device 20 through UWB ranging with the reference device 20. The identification operation may follow the procedure described above with reference to FIG. 9A .

For example, as a result of UWB ranging between the reference device 20 and the first user device 10-1/the second user device 10-2, the reference device 20 and the first user device 10- 1)/Distance information indicating a distance between the second user equipment 10 - 2 (eg, ToF information) and indicating an angle between the reference device 20 and the user equipment 10/second user equipment 10 - 2 Direction (angle) information (eg, AoA (angle of arrival) information including AoA azimuth (horizontal angle) and/or AoA elevation (vertical angle)) may be acquired, respectively. For example, through UWB ranging, 3 Based on the respective distances (eg, d _r1 and d _r2 in FIG. 9B(a) ) and the reference device 20 between the reference device 20 and the first user device 10-1/second user device in the dimension Each horizontal angle (AoA azimuth) between the reference device 20 and the first user device 10-1/second user device 10-2 and the reference device 20 based on the reference device 20 and Each vertical angle (AoA elevation) between the first user device 10 - 1 / the second user device 10 - 2 may be obtained.

Based on the distance information and the direction information, the respective positions of the first user device 10 - 1 / the second user device 10 - 2 based on the position of the reference device 20 may be determined. For example, the positions of the first user device 10 - 1 / the second user device 10 - 2 may be determined based on Equation 1 described above.

second action

In the case of the embodiment of FIG. 9B , as described above, there is no three-dimensional intersection between the line segments from the respective user devices 10 - 1 and 10 - 2 toward the target device 30 . However, since both user devices 10 - 1 and 10 - 2 point to the target device 30 , a two-dimensional intersection always exists. Therefore, it is necessary to first obtain a two-dimensional intersection (coordinates in two dimensions of the target device), and then to obtain three-dimensional coordinates of the target device based on this. The second operation corresponds to an operation of determining two-dimensional coordinates (intersections) of the target device.

Hereinafter, the second operation will be described with reference to FIG. 9B(b). FIG. 9B( b ) shows the positions of the first user device 10 - 1 , the second user device 10 - 2 , and the target device 30 projected on the xy plane (a two-dimensional plane).

Each parameter of FIG. 9b(b) will be described as follows.

d _r1 : the distance between the reference device 20 and the first user device 10 - 1 on the xy plane

d _r2 : the distance between the reference device 20 and the second user device 10 - 2 on the xy plane

d ₁₂ : the distance between the first user device 10 - 1 and the second user device 10 - 2 on the xy plane

x: The distance between the intersection point o and the first user device 10 - 1 on the xy plane.

y: the distance between the intersection point o and the second user device 10 - 2 on the xy plane.

Here, the intersection point o corresponds to the intersection point of the normal to the line segment corresponding to d ₁₂ of the target device 30 on the xy plane.

: xy 평면 상의, d_t2에 대응하는 선분과 d₁₂에 대응하는 선분 사이의 각도

: the angle between the line segment corresponding to d _t2 and the line segment corresponding to d ₁₂ on the xy plane

: xy 평면 상의, d_t1에 대응하는 선분과 d₁₂에 대응하는 선분 사이의 각도

: the angle between the line segment corresponding to d _t1 and the line segment corresponding to d ₁₂ on the xy plane

In an embodiment, the second operation includes UWB ranging (first UWB ranging) between the first user device 10 - 1 and the reference device 20 , and the second user device 10 - 2 and the reference device 20 . ) using the results of UWB ranging (second UWB ranging) and/or UWB ranging (third UWB ranging) between the first user equipment 10-1 and the second user equipment 10-2. can be performed.

As an embodiment, information on the distance d _r1 between the reference device 20 and the first user device 10 - 1 may be obtained through the result of the first UWB ranging.

As an embodiment, information on the distance d _r2 between the reference device 20 and the second user device 10 - 2 may be obtained through the result of the second UWB ranging.

As an embodiment, through the result of the third UWB ranging, information on the distance d ₁₂ between the first UWB device 10-1 and the second UWB device 10-2 and the first UWB device 10 Information about the angle between -1) and the second UWB device 10-2 may be obtained.

)에 대한 정보 및/또는 제2 UWB 기기(10-2)를 기준으로 하는 제2 UWB 기기(10-2)와 제1 UWB 기기(10-1) 사이의 각도(

)에 대한 정보를 포함할 수 있다.As an embodiment, information on the angle between the first UWB device 10-1 and the second UWB device 10-2 is the first UWB device 10− with respect to the first UWB device 10-1. 1) and the angle between the second UWB device (10-2) (

) and/or the angle between the second UWB device 10-2 and the first UWB device 10-1 based on the second UWB device 10-2 (

) may contain information about

In an embodiment, the first UWB device 10-1 and/or the second UWB device 10-2 may include a distance d _t1 between the first UWB device 10-1 and the target device 30 and the second UWB device 10-1. 2 The distance d _t2 between the UWB device 10 - 2 and the target device 30 may be acquired. For example, the first UWB device 10-1 and/or the second UWB device 10-2 may obtain the distance d _t1 and the distance d _t2 using Equation 5 below.

[Equation 5]

As an embodiment, the first UWB device 10-1 and/or the second UWB device 10-2 uses the obtained distance d _t1 and distance d _t2 to determine the coordinates of the target device 30 in two dimensions ( x _t , y _t ) can be obtained.

3rd action

The third operation corresponds to an operation of determining the coordinates of the target device 30 in three dimensions.

As an embodiment, the third operation may be performed using a sensor (eg, a (gravity) acceleration sensor) of each of the user devices 10 - 1 and 10 - 2 . For example, the acceleration sensor may be used in the third operation to obtain the inclination (eg, the inclination relative to the ground) of each of the user devices 10 - 1 and 10 - 2 pointing to the target device 30 .

)를 획득할 수 있고, 제2 사용자 기기(10-2)는 제2 사용자 기기(10-2)의 위치에서 가속도 센서를 이용하여 대상 기기(30)에 대한 제2 기울기(

)를 획득할 수 있다.As an embodiment, the first user device 10 - 1 uses an acceleration sensor at the position of the first user device 10 - 1 to have a first tilt (

), and the second user device 10 - 2 uses an acceleration sensor at the location of the second user device 10 - 2 to obtain a second inclination (

) can be obtained.

) 및/또는 제2 기울기(

)를 이용하여, 대상 기기(30)의 2차원 좌표 (x_t, y_t)로부터 3차원 좌표 (x_t, y_t, z_t)를 획득할 수 있다. 이러한 기울기를 이용한 2차원 좌표(x_t, y_t)로부터 3차원 좌표(x_t, y_t, z_t)를 획득하는 동작은, 예컨대, 상술한 도 9a의 절차에 따라 수행될 수 있다.As an embodiment, the first user device 10-1 and/or the second user device 10-2 may have a first inclination (

) and/or a second slope (

), the three-dimensional coordinates (x _t , y _t , z _t ) may be obtained from the two-dimensional coordinates (x _t , y _t ) of the target device 30 . The operation of obtaining the three-dimensional coordinates (x _t , y _t , z _t ) from the two-dimensional coordinates (x _t , y _t ) using such a gradient may be performed, for example, according to the procedure of FIG. 9A described above.

In summary, in the case of the fifth option of the registration procedure, since there is no three-dimensional intersection of line segments from each user device 10-1, 10-2 toward the target device 30, first, the two-dimensional image The two-dimensional coordinates of the target device may be first obtained through the intersection point, and the two-dimensional coordinates may be extended to the three-dimensional coordinates based on the inclination toward the target device 30 . In this case, the two-dimensional coordinates of the target device 30 are obtained using the result of UWB ranging between the first user device 10-1 and the second user device 10-2, and each user device 10-1 , 10-2) and the target device 30 may be obtained using distance information.

9C illustrates a fifth embodiment of a registration procedure for registering a non-UWB device according to an embodiment of the present disclosure.

The embodiment of Fig. 9c shows an example of a registration procedure according to the sixth option of the registration procedure, shown in Fig. 6b(c).

In the embodiment of FIG. 9C , a plurality of user devices (eg, the first user device 10 - 1 , the second user device 10 - 2 , and the third user device 10 - 2 ) are the target device 30 . It is assumed that there is an intersection point on the 3D that points to the target device 30 . Accordingly, the coordinates of each user device 10-1, 10-2, and 10-3 based on the position (reference position) of the reference device 20 and the line segments (straight lines) passing through the coordinates of the target device 30 are The coordinates of the target device 30 may be obtained by obtaining the intersection point.

The registration procedure of FIG. 9C identifies the locations of the first user device 10-1, the second user device 10-2, and the third user device 10-3 based on the location of the reference device 20. It may include an operation (first operation) and/or an operation (second operation) of obtaining coordinates of the target device 30 in three dimensions.

Through this registration procedure, the location of the target device 30 may be identified based on the location (reference location) of the reference device 20 . The identified location of the target device 30 may be stored and used in a subsequent recognition procedure.

In the embodiment of FIG. 9C , it is assumed that the position on the xy plane of the reference device 20 is (0,0,0).

first action

In an embodiment, the first operation includes UWB ranging between the first user device 10-1 and the reference device 20, UWB ranging between the second user device 10-2 and the reference device 20, and the first operation. 3 This may be performed using the results of UWB ranging of the user device 10 - 3 and the reference device 20 . For example, the UWB two-way ranging (TWR) scheme described with reference to FIG. 4 may be used. Each of the user devices 10-1, 10-2, and 10-3 is based on the location of the reference device 20 through UWB ranging with the reference device 20. Each of the user devices 10-1, 10-2 , 10-3) may follow the procedure described above in FIG. 9A .

For example, as a result of UWB ranging between the reference device 20 and the first user device 10-1/the second user device 10-2/the second user device 10-3, the reference device ( 20) and distance information (eg, ToF information) indicating a distance between the first user device 10-1/second user device 10-2/third user device 10-3 and the reference device 20 Direction (angle) information (eg, (AoA azimuth (horizontal angle) and/or AoA elevation) indicating an angle between the user device 10/second user device 10-2/third user device 10-3) AoA (angle of arrival) information including (vertical angle) may be obtained, for example, through UWB ranging, the reference device 20 and the first user device 10 - 1 in 3D 2 The reference device 20 and the first user device 10-1/the second user device 10-2 based on each distance between the user device/third user device 10-3 and the reference device 20 ) / the reference device 20 and the first user device 10-1 / the second user device ( 10-2), each vertical angle (AoA elevation) of the liver can be obtained.

Based on the distance information and direction information, the first user device 10-1 / the second user device 10-2 / the third user device 10-3 based on the location of the reference device 20 Each position of can be determined. For example, the positions of the first user device 10-1/the second user device 10-2/the third user device 10-3 may be determined based on Equation 1 described above.

second action

In the embodiment of FIG. 9C , unlike the embodiment of FIG. 9B , a three-dimensional intersection exists between line segments from each user device 10 - 1 and 10 - 2 toward the target device 30 . Accordingly, it is possible to directly obtain coordinates in three dimensions through an intersection point in two dimensions.

The second operation corresponds to an operation of determining the coordinates of the target device in three dimensions.

As an embodiment, the second operation includes the coordinates (position) of each user device 10-1, 10-2, and 10-3 obtained through the first operation and the coordinates (position) of the target device to be obtained, that is, It may include an operation of obtaining line segments passing through the coordinates of two points.

For example, a line segment (straight line) passing through two points ((x _u ,y _u ,z _u ) and (x _v ,y _v ,z _v )) may be expressed in Equation 6 below.

[Equation 6]

The first user device 10-1, the second user device 10-2, and/or the third user device 10-2 use Equation 6 to determine the coordinates of the first user device 10-1. and a first line segment (first straight line) passing through the coordinates of the target device, a second line segment (second straight line) passing through the coordinates of the second user device 10-2 and the coordinates of the target device, and the third user device 10- The equation of the straight line for the third line segment (third straight line) passing through the coordinates of 3) and the coordinates of the target device may be obtained, respectively.

The first user device 10-1, the second user device 10-2, and/or the third user device 10-2 may use the obtained equation of the straight line to obtain the coordinates of the intersection of the corresponding straight lines. have. The obtained coordinates of the intersection of each line segment (straight line) correspond to the coordinates of the target device 30 in three dimensions.

In summary, in the case of the sixth option of the registration procedure, since there is a three-dimensional intersection of line segments from each user device 10 - 1 , 10 - 2 , and 10 - 3 toward the target device 30 , the target device The three-dimensional coordinates of the target device 30 may be directly obtained by calculating the intersection of the coordinates of 30 and the lines passing through the coordinates of each of the user devices 10-1, 10-2, and 10-3.

10 illustrates a method of recognizing a target device based on a distance to a straight line pointed by a user device according to an embodiment of the present disclosure.

The embodiment of FIG. 10 shows an example of the recognition procedure of FIG. 7 . 10 , the user device 10 may recognize the target device 30 using the distance h between the straight line pointed by the user device 10 and the target device 30 .

In an embodiment, the distance h may be calculated based on Equation 7 below to obtain a distance for a straight line passing through two points.

[Equation 7]

Examples of the parameters and distance h used in Equation 7 are as shown in FIGS. 10(a) and (b).

는 사용자 기기(10)의 위치를 나타낸다.

의 좌표는

로 표기될 수 있다. 일 실시예에서,

는 도 6 내지 도 9에서 상술한 사용자 기기(10)와 레퍼런스 기기(20) 간의 UWR 레인징 절차를 통해 획득될 수 있다.here,

indicates the location of the user device 10 .

the coordinates of

can be denoted as In one embodiment,

may be obtained through the UWR ranging procedure between the user device 10 and the reference device 20 described above with reference to FIGS. 6 to 9 .

는 대상 기기(30)의 위치를 나타낸다.

는 도 6, 8 및 9에서 상술한 등록 절차를 통해 획득될 수 있고,

의 좌표는

로 표기될 수 있다.

indicates the location of the target device 30 .

can be obtained through the registration procedure described above in FIGS. 6, 8 and 9,

the coordinates of

can be denoted as

는 사용자 기기(10)가 대상 기기(30)를 인식하기 위해 포인팅하는 방향(또는, 직선)에 위치하는 임의의 점의 위치일 수 있다. 예를 들면, 도 10(a)에서와 같이,

는 사용자 기기(10)가 포인팅하는 직선 상에 위치하는,

로부터 거리 1만큼 떨어진 점의 좌표일 수 있다.

의 좌표는

로 표기될 수 있다. 일 실시예에서,

는 도 8의 실시예의 제2 단계 및 제3 단계와 동일한 절차를 통해 획득될 수 있다.

may be the location of any point located in the pointing direction (or straight line) of the user device 10 to recognize the target device 30 . For example, as in Fig. 10(a),

is located on a straight line pointed by the user device 10,

It may be the coordinates of a point separated by a distance of 1 from .

the coordinates of

can be denoted as In one embodiment,

may be obtained through the same procedure as the second and third steps of the embodiment of FIG. 8 .

는 레퍼런스 기기(20)를 기준으로 하는 사용자 기기(10)와 레퍼런스 기기(20) 간의 수평 각도를 나타낸다.In the embodiment of Figure 10,

denotes a horizontal angle between the user device 10 and the reference device 20 with respect to the reference device 20 .

는 레퍼런스 기기(20)를 기준으로 하는 대상 기기(30)와 레퍼런스 기기(20) 간의 수평 각도를 나타낸다.

denotes a horizontal angle between the target device 30 and the reference device 20 with respect to the reference device 20 .

는 사용자 기기(10)를 기준으로 하는 사용자 기기(10)와 레퍼런스 기기(20) 간의 수평 각도를 나타낸다.

denotes a horizontal angle between the user device 10 and the reference device 20 with respect to the user device 10 .

는 사용자 기기(10)를 기준으로 하는 사용자 기기(10)와 대상 기기(30) 간의 수평 각도를 나타낸다.

denotes a horizontal angle between the user device 10 and the target device 30 with respect to the user device 10 .

The user device 10 may recognize the target device 30 based on the obtained (or calculated) distance h. In an embodiment, the user device 10 may determine whether the distance h is less than a preset threshold. When the distance h is smaller than the preset threshold, the user device 10 may recognize that the corresponding target device 30 is a control target (located in the pointing direction of the user device 10 ). Alternatively, when the distance h is greater than a preset threshold, the user device 10 may recognize that the corresponding target device 30 is not a control target (because the user device 10 is not located in a pointing direction). can

When the target device 30 to be controlled is recognized, the user device 10 may provide (eg, display) control information (eg, control UX) for controlling the target device 30 to the user. In this case, the user may control the target device 30 using the control information.

Meanwhile, as shown in FIG. 10A , a plurality of target devices 30 may exist. In this case, when a plurality of target devices 30 to be controlled are recognized, the user device 10 may provide (eg, display) list information on the plurality of target devices 30 to the user. In this case, the user may select one target device 30 from among a plurality of target devices 30 included in the list information and control the corresponding target device 30 . In an embodiment, when the target device 30 is selected, the user device 10 may provide control information for controlling the target device 30 to the user.

11 is a flowchart illustrating a method of a first UWB device according to an embodiment of the present disclosure.

In the embodiment of FIG. 11 , the first UWB device may be the user equipment described above with reference to FIGS. 6 to 10 . Also, the second UWB device may be the reference device described above with reference to FIGS. 6 to 10 . Also, the non-UWB device may be the target device described above with reference to FIGS. 6 to 10 .

Referring to FIG. 11 , the first UWB device may perform a registration step for identifying the location of the non-UWB device ( S1110 ). In an embodiment, the registering step may include, based on UWB ranging between the first UWB device and the second UWB device, identifying the location of the non-UWB device with respect to the location of the second UWB device. have. For the operation of the registration step, refer to the description described above with reference to FIGS. 6, 8 and 9 and the description to be described later with reference to FIGS. 12 and 13 below.

The first UWB device may perform a recognition step for recognizing the registered non-UWB device (S1120). In one embodiment, the recognizing step is based on the pointing direction of the first UWB device and the location of the non-UWB device identified in the registration step, identifying whether the first UWB device points to the registered non-UWB device may include steps. For the operation of this recognition step, refer to the description described above with reference to FIGS. 7 and 10 .

12 is a flowchart illustrating a registration step of a first UWB device according to an embodiment of the present disclosure.

The registration step in FIG. 12 may be an embodiment according to option 1 or 2 of the registration step described above in FIGS. 6 and 8 . Accordingly, the operation of the registration step of FIG. 12 may refer to the descriptions of FIGS. 6 and 8 .

In the embodiment of FIG. 12 , the first UWB device may be the user equipment described above with reference to FIGS. 6 to 10 . Also, the second UWB device may be the reference device described above with reference to FIGS. 6 to 10 . Also, the non-UWB device may be the target device described above with reference to FIGS. 6 to 10 .

Referring to FIG. 12 , the first UWB device may identify the location of the first electronic device based on the location of the second UWB device using the result of UWB ranging with the second UWB device ( 1210 ). . In an embodiment, UWB ranging may be performed based on a two-way ranging (TWR) scheme. In an embodiment, the result of UWB ranging may include time of flight (ToF) information, angle of arrival (AoA) azimuth information, and AoA elevation information. Identification of the location of the first electronic device based on the location of the second UWB device may be based on Equation (1).

The first UWB device may acquire tilt information of the first UWB device pointing to the non-UWB device within a preset distance ( 1220 ). Through this, the location of the non-UWB device with respect to the location of the first UWB device may be identified.

The first UWB device may identify the location of the non-UWB device based on the location of the second UWB device based on the AoA azimuth information and preset distance and inclination information ( 1230 ). Identification of the location of the non-UWB device based on the location of the second UWB device may be based on Equations 2 and 3.

13 is a flowchart illustrating a registration step of a first UWB device according to another embodiment of the present disclosure.

The registration step of FIG. 13 may be an embodiment according to option 3 of the registration step described above with reference to FIGS. 6 and 9 . Accordingly, the operation of the registration step of FIG. 13 may refer to the descriptions of FIGS. 6 and 9 .

In the embodiment of FIG. 13 , the first UWB device may be the user equipment described above with reference to FIGS. 6 to 10 . Also, the second UWB device may be the reference device described above with reference to FIGS. 6 to 10 . Also, the non-UWB device may be the target device described above with reference to FIGS. 6 to 10 .

Referring to FIG. 13 , the first UWB device identifies the first location of the first electronic device based on the location of the second UWB device, using the result of UWB ranging at the first location, and the second location The second location of the first electronic device based on the location of the second UWB device may be identified using the result of UWB ranging in operation 1310 . In one embodiment, the result of UWB ranging at the first location includes first ToF information, first AoA azimuth information, and first AoA elevation information for the first location, and the result of UWB ranging at the second location The result may include second ToF information for the second location, second AoA azimuth information, and second AoA elevation information. Identification of the first location and the second location of the first electronic device based on the location of the second UWB device may be based on Equation 1, respectively.

The first UWB device may obtain first tilt information of the first UWB device pointing to the non-UWB device at the first location and second tilt information of the second UWB device pointing the non-UWB device at the second location There is (1320). Through this, each location of the non-UWB device based on each of the first location and the second location of the first UWB device may be identified.

The first UWB device may identify the location of the non-UWB device based on the location of the second UWB device based on the first AoA azimuth information, the second AoA azimuth information, the first tilt information, and the second tilt information. There is (1330). In an embodiment, the first UWB device includes a first straight line pointing to the non-UWB device at a first location based on the first AoA azimuth information, the second AoA azimuth information, the first tilt information and the second tilt information; By obtaining the intersection of the second straight line pointing to the non-UWB device at the second location, the location of the non-UWB device with respect to the location of the second UWB device may be identified. Identification of the location of the non-UWB device based on the location of the second UWB device may be based on Equations 2 and 3.

14 is a diagram illustrating a structure of a first electronic device according to an embodiment of the present disclosure.

In the embodiment of FIG. 14 , the first electronic device may be a UWB support device. For example, the first electronic device may be the aforementioned user device or reference device.

Referring to FIG. 14 , the first electronic device may include a transceiver 1410 , a controller 1420 , and a storage 1430 . In the present disclosure, the controller may be defined as a circuit or an application-specific integrated circuit or at least one processor.

The transceiver 1410 may transmit/receive signals to and from other network entities. The transceiver 1410 may transmit/receive data for UWB ranging using, for example, UWB communication.

The controller 1420 may control the overall operation of the first electronic device according to the embodiment proposed in the present disclosure. For example, the controller 1420 may control a signal flow between blocks to perform an operation according to the above-described flowchart. Specifically, the controller 1420 may control, for example, the operation of the first electronic device described with reference to FIGS. 1 to 13 .

The storage unit 1430 may store at least one of information transmitted/received through the transceiver 1410 and information generated through the control unit 1420 . For example, the storage unit 1430 may store information and data necessary for registration and recognition of a non-UWB device using UWB described with reference to FIGS. 1 to 11 .

15 is a diagram illustrating a structure of a first electronic device according to another embodiment of the present disclosure.

In the embodiment of FIG. 15 , the first electronic device may be a UWB support device. For example, the first electronic device may be the aforementioned user device or reference device.

Referring to FIG. 15 , the first electronic device may include a transceiver 1510 , a controller 1520 , a storage 1530 , a user interface 1540 , and/or a display 1550 . In the present disclosure, the controller may be defined as a circuit or an application-specific integrated circuit or at least one processor. The first electronic device of the embodiment of FIG. 15 may further include a user interface 1540 and/or a display 1550 as compared to the first electronic device of the embodiment of FIG. 14 .

The transceiver 1510 may transmit/receive signals to and from other electronic devices. The transceiver 1510 may transmit/receive data for UWB ranging with the second electronic device using, for example, UWB communication.

The controller 1520 may control the overall operation of the first electronic device according to the embodiment proposed in the present disclosure. For example, the controller 1520 may control a signal flow between blocks to perform an operation according to the above-described flowchart. Specifically, the controller 1520 may control, for example, the operation of the first electronic device described with reference to FIGS. 1 to 13 .

The storage unit 1530 may store at least one of information transmitted and received through the transceiver 1510 and information generated through the control unit 1520 . For example, the storage unit 1530 may store information and data necessary for registration and recognition of a non-UWB device using UWB described with reference to FIGS. 1 to 11 .

The user interface 1540 includes various types of input/output means provided in the first electronic device. That is, the user interface may receive a user input using various input means, and the controller 1520 may control the first electronic device based on the received user input. Also, the user interface 1540 may perform output based on a command of the controller 1520 using various output means.

The display 1550 outputs an image on the display screen. The display 1550 may output various display objects, such as content executed by the controller 1520 or a user interface based on a control command of the controller 1520 . For example, the display 1550 may display a control UX for controlling the above-described recognized target device.

16 is a diagram illustrating a structure of a second electronic device according to another embodiment of the present disclosure.

In the embodiment of FIG. 16 , the second electronic device may be a non-UWB device. For example, the second electronic device may be the above-described target device.

Referring to FIG. 16 , the second electronic device may include a transceiver 1610 , a controller 1620 , a storage 1630 , a user interface 1640 , and/or a display 1650 . In the present disclosure, the controller may be defined as a circuit or an application-specific integrated circuit or at least one processor. Some of the configurations of the embodiment of FIG. 16 may be optional. For example, the display 1650 may have an optional configuration.

The transceiver 1610 may transmit/receive a signal to/from another electronic device. The transceiver 1610 may receive, for example, a control signal for controlling the second electronic device from the first electronic device.

The controller 1620 may control the overall operation of the second electronic device according to the embodiment proposed in the present disclosure. For example, the controller 1620 may control a signal flow between blocks to perform an operation according to the above-described flowchart. Specifically, the controller 1620 may control, for example, the operation of the second electronic device described with reference to FIGS. 1 to 13 .

The storage unit 1630 may store at least one of information transmitted and received through the transceiver 1610 and information generated through the control unit 1620 . For example, the storage unit 1630 may store information and data necessary for registration and recognition of a non-UWB device using UWB described with reference to FIGS. 1 to 11 .

The user interface 1640 includes various types of input/output means provided in the second electronic device. That is, the user interface may receive a user input using various input means, and the controller 1620 may control the first electronic device based on the received user input. Also, the user interface 1640 may perform an output based on a command of the controller 1620 using various output means.

The display 1650 outputs an image on the display screen. The display 1650 may output various display objects, such as content executed by the controller 1620 or a user interface based on a control command of the controller 1620 .

In the specific embodiments of the present disclosure described above, elements included in the present disclosure are expressed in the singular or plural according to the specific embodiments presented. However, the singular or plural expression is appropriately selected for the context presented for convenience of description, and the present disclosure is not limited to the singular or plural component, and even if the component is expressed in plural, it is composed of a singular or singular. Even an expressed component may be composed of a plurality of components.

Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments and should be defined by the claims described below as well as the claims and equivalents.

Claims (14)

In the method of the first UWB device,
identifying a location of a non-UWB device based on the location of the second UWB device based on the UWB ranging between the first UWB device and the second UWB device; and
and recognizing the non-UWB device based on a pointing direction of the first UWB device and a location of the identified non-UWB device. According to claim 1,
Identifying the location of the non-UWB device includes:
identifying the location of the first UWB device with respect to the location of the second UWB device using a result of the UWB ranging;
The UWB ranging result includes time of flight (ToF) information, angle of arrival (AoA) azimuth information, and AoA elevation information. 3. The method of claim 2,
Identifying the location of the non-UWB device includes:
obtaining tilt information of the first UWB device pointing to the non-UWB device within a preset distance; and
Based on the AoA azimuth information, the preset distance, and the inclination information, the method further comprising the step of identifying a location of the non-UWB device with respect to the location of the second UWB device. According to claim 1,
Identifying the location of the non-UWB device includes:
identifying a first location of the first UWB device based on the location of the second UWB device using a result of UWB ranging at the first location; and
identifying a second location of the first UWB device based on the location of the second UWB device using a result of UWB ranging at the second location;
The result of UWB ranging at the first position includes first ToF information, first AoA azimuth information, and first AoA elevation information for the first position, and the result of UWB ranging at the second position is and second ToF information for the second location, second AoA azimuth information, and second AoA elevation information. 5. The method of claim 4,
Identifying the location of the non-UWB device includes:
Obtaining first tilt information of the first UWB device pointing to the non-UWB device at the first location and second tilt information of the second UWB device pointing the non-UWB device at the second location step;
Based on the first AoA azimuth information, the second AoA azimuth information, the first inclination information and the second inclination information, a first straight line pointing to the non-UWB device at the first position and the second position identifying the location of the non-UWB device with respect to the location of the second UWB device by obtaining an intersection of a second straight line pointing to the non-UWB device in the . According to claim 1,
The method of claim 1, wherein the UWB ranging is performed based on a two-way ranging (TWR) scheme. According to claim 1,
Recognizing the non-UWB device includes providing control information for controlling the recognized non-UWB device. In the first UWB device,
Memory;
transceiver; and
a controller coupled to the memory and the transceiver, the controller comprising:
based on UWB ranging between the first UWB device and the second UWB device, identify a location of a non-UWB device with respect to the location of the second UWB device,
and recognize the non-UWB device based on a pointing direction of the first UWB device and a location of the identified non-UWB device. 9. The method of claim 8,
The controller is:
and identify a location of the first UWB device with respect to the location of the second UWB device using a result of the UWB ranging,
The UWB ranging result includes time of flight (ToF) information, angle of arrival (AoA) azimuth information, and AoA elevation information, the first UWB device. 10. The method of claim 9,
The controller is:
obtaining inclination information of the first UWB device pointing to the non-UWB device within a preset distance;
and identify a location of the non-UWB device with respect to the location of the second UWB device based on the AoA azimuth information, the preset distance and the tilt information. 9. The method of claim 8,
The controller is:
identifying a first location of the first UWB device with respect to the location of the second UWB device using the result of UWB ranging at the first location;
and identify a second location of the first UWB device relative to the location of the second UWB device using a result of UWB ranging at the second location;
The result of UWB ranging at the first position includes first ToF information, first AoA azimuth information, and first AoA elevation information for the first position, and the result of UWB ranging at the second position is The first UWB device, including second ToF information for the second location, second AoA azimuth information, and second AoA elevation information. 12. The method of claim 11,
The controller is:
Obtaining first tilt information of the first UWB device pointing to the non-UWB device at the first location and second tilt information of the second UWB device pointing the non-UWB device at the second location, and ,
Based on the first AoA azimuth information, the second AoA azimuth information, the first inclination information and the second inclination information, a first straight line pointing to the non-UWB device at the first position and the second position a first UWB device, configured to identify a location of the non-UWB device with respect to the location of the second UWB device by obtaining an intersection of a second straight line pointing to the non-UWB device in the . 9. The method of claim 8,
The first UWB device, wherein the UWB ranging is performed based on a two-way ranging (TWR) scheme. 9. The method of claim 8,
The first UWB device, wherein the controller is configured to provide control information for controlling the recognized non-UWB device.

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