Samsung Electronics Co., Ltd.

Seoul National University

Sungkyunkwan University

Mingyu Lee

Taeyoung Ha

Seongah Jeong

Sooyeon Jung

Kangjin Yoon

Jonghoe Koo

Zheda Li

Hyunseob Oh

Boon Loong Ng

Junghwan Choi

Youngdon Choi

Tae-Jin Lee

Hyunchul Kim

Bokun Choi

Aditya V Padaki

Seungjin Park

Youngchul Cho

Junyoung Choi

Youngwan So

Haeyoung Jun

Jinwook Seo

Jongho Park

Sunghyun Choi

Yi Yang

Moonseok Kang

Moonsoo Kim

Jaewoo Park

Mincheol Seo

Younghoon Son

Jonghoon Jang

Sehee Han

Jonghyo Lee

Yunmin Kim

Sejong Yoon

Eunyoung Kwon

Ji Hyoung Ahn

Hyungmin Jin

Sunghoon Cho

Gyujin Lee

Youngkow Lee

Oleksandr Andrieiev

Doobock Lee

Dongho Won

Whasook Jeon

Jaheon Gu

Chang-Yeong Oh

Pyeong-Soo Mah

Woo Suk Cha

Jaewook Jung

Kisoo An

Jongjin Bae

Keejun Han

Aditya Vinod Padaki

A method for operating an ultra-wide band (UWB) channel and a narrow band (NB) channel together are provided. The method of a second UWB device includes receiving an advertisement message providing information on a UWB channel used by the first UWB device through an NB channel, and performing at least one operation for performing UWB ranging by using the UWB channel based on the advertisement message. The UWB channel may be one of candidate UWB channels allocated for UWB communication, and the NB channel may be a sub-channel of one of the candidate UWB channels.

Method and apparatus for providing ultra wide band (UWB) communication

The disclosure provides a method for spatial reuse of time resources. A method performed by a UWB device includes receiving, from a first initiator anchor, a first poll message to initiate a DL-TDoA for a first cluster to which the first initiator anchor belongs, the first initiator anchor providing a time reference for an inter-cluster synchronization; performing the inter-cluster synchronization for using a common ranging block, based on the first poll message; and transmitting a second poll message to initiate a DL-TDoA for a second cluster to which the UWB device belongs. The first poll message is transmitted in a first ranging round in the common ranging block, and the first poll message is transmitted in a second ranging round in the common ranging block.

Method and device for ultra wide band (UWB) communication

A semiconductor device includes a first power node configured to supply a first power supply voltage, a pull-up circuit electrically connected between the first power node and an output node that is configured to output a signal, and a controller configured to output a pull-up control code to the pull-up circuit. The pull-up circuit includes a plurality of unit circuits electrically connected to each other in parallel between the first power node and the output node, and the plurality of unit circuits include a first unit circuit and a second unit circuit. The number of current paths provided by the first unit circuit between the first power node and the output node is different from the number of current paths provided by the second unit circuit between the first power node and the output node.

Semiconductor device

A first electronic device according to various embodiments of the present disclosure may: determine a location of the first electronic device via an out of band (OOB) connection; select, on the basis of information regarding the determined location, an applet within the first electronic device; and carry out, by using the selected applet, ultra-wideband (UWB) communication with a second electronic device adjacent to the determined location.

Method and apparatus for carrying out ultra-wideband communication

A method and a device for configuring a time block structure are provided. A method performed by a controller in a communication system supporting ranging is provided. The method includes generating a ranging control message (RCM) including configuration information on a hyper block structure, and transmitting, to at least one controlee, the ranging control message, wherein the hyper block structure has a repeated pattern of a hyper block which is a group of ranging blocks.

Method and device for configuring time block structure for UWB communication

A method for providing bi-directional ultra-wide band (UWB) ranging is provided. The method by a first ultra-wide band (UWB) device includes transmitting an initiation message for initiating UWB ranging, receiving at least one device access message from at least one second UWB device within a contention period, transmitting at least one reply message, receiving at least one device reply message corresponding to the at least one reply message from one or more of the at least one second UWB device, and transmitting, to the one or more second UWB device, a final message based on UWB ranging performed using the device access message, the reply message, and the device reply message.

Method and device for performing UWB ranging

A clock signal delay path unit includes a first delay cell including a first root signal line for delaying and transmitting a clock signal, a first repeater to transmit the clock signal transmitted through the first root signal line without signal attenuation, and a second root signal line for delaying and transmitting the clock signal output from the first repeater, a second delay cell including a first inverting circuit configured to invert the clock signal provided from the first delay cell to generate an inverted clock signal, and a third delay cell including a first branch signal line for delaying and transmitting the inverted clock signal provided from the second delay cell, a second repeater to transmit the inverted clock signal transmitted through the first branch signal line, and a second branch signal line for delaying and transmitting the inverted clock signal output from the second repeater.

Memory device and operating method of a memory device

Disclosed is a method for performing downlink time difference of arrival (DL-TDoA) by an ultra-wide band (UWB) device that includes selecting at least one active ranging round from a ranging block based on at least one of location information or motion information about the UWB device, transferring, to a UWB sub system, a command including information about the at least one active ranging round, and performing a DL-TDoA operation based on the information about the at least one active ranging round.

Method and device for UWB communication

A method of a user terminal is provided. The method includes selecting two gates from among a plurality of gates, based on location information of the plurality of gates and location information of the user terminal, identifying whether the user terminal enters a radio access area on the basis of a value of an included angle between the two gates and the user terminal and, in response to the user terminal being entered the radio access area, selecting a first gate to perform radio access from among the two gates.

Method and system for selecting gate using positioning information

Methods are provided for ultra-wideband (UWB) ranging based on contention-based multiple access. A method performed by a first UWB device includes transmitting an initiation message for initiating UWB ranging, receiving an access message from a second UWB device within a contention period, transmitting a first reply message (RM), receiving a second RM corresponding to the first RM from the second UWB device, and transmitting a final message.

A method for operating a first ultra-wideband (UWB) device according to an embodiment of the disclosure may include: transmitting, in a first slot within a ranging round, a ranging control message for UWB communication; receiving a first packet transmitted by a second UWB device in a second slot within the ranging round based on the ranging control message; and receiving a second packet transmitted by a third UWB device in the second slot within the ranging round based on the ranging control message.

Ultra-wideband device for transmitting/receiving multiple packets and method for operating same

Provided is a method for stably and flexibly performing ranging between a plurality of devices. According to an embodiment, a method of operating a first device for performing ranging by using ultra-wide band (UWB) may include: transmitting a first ranging control (RC) frame to a second device; performing ranging with the second device for a number of ranging rounds determined based on the first RC frame; changing at least one ranging parameter based on a change request received from the second device; and transmitting a second RC frame including the changed at least one ranging parameter.

Electronic device for performing ranging through ultra-wide band (UWB), and method for operating electronic device

Methods and devices are provided for ultra-wideband (UWB) communication. A first UWB device generates a discovery message providing information used for discovery of the first UWB device. The first UWB device broadcasts the discovery message through a narrowband (NB) discovery channel. The NB discovery channel is not associated with a UWB channel. The UWB channel is one of a plurality of candidate UWB channels allocated for the UWB communication.

Method and device for ultra-wideband communication

According to various embodiments, an electronic device may include a communication circuit; and at least one processor operatively connected to the communication circuit, wherein the at least one processor is configured to: receive, via the communication circuit from at least one external electronic device in a first active ranging round within a first ranging block, a ranging response message (RRM) including a first round index of a first ranging round in which the at least one external electronic device performs a first ranging operation as an initiator in a neighbor cell, and a number of hops between a reference cell in which a reference external electronic device exists and the neighbor cell, and select a second active ranging round in which the electronic device performs a second ranging operation in a second ranging block based on at least the RRM.

Electronic device and method for performing ranging operation

Provided is a method, performed by an electronic device, of performing secure ranging with a target device. The method of performing secure ranging may include receiving a connection message for communication with the target device using a first communication method through a first communicator, transmitting, by a first applet in a secure element of the electronic device, a ranging session key for the target device to a second applet in the secure element, the ranging session key being stored in the first applet, receiving a ranging session request from the target device, based on the ranging session request, obtaining, by a second communicator, the ranging session key for the target device from the second applet, and by using the ranging session key, performing secure ranging using a second communication method with the target device through the second communicator.

Method and apparatus by which electronic device performs secure ranging

Growing community of inventors

Seongnam-si, South Korea

Mingyu Lee