公开(公告)号：US20200152211A1

公开(公告)日：2020-05-14

申请号：US16747533

申请日：2020-01-21

Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY ,  WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Taegyu LEE ,  Hyunoh OH ,  Youngcheol PARK ,  Daehee YOUN ,  Jeongil SEO ,  Yongju LEE ,  Seungkwon BEACK ,  Kyeongok KANG ,  Daeyoung JANG

IPC: G10L19/008 ,  H04S3/00 ,  H04R5/033

Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.

公开(公告)号：US10651992B2

公开(公告)日：2020-05-12

申请号：US16396635

申请日：2019-04-27

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Geonjung Ko ,  Jinsam Kwak ,  Juhyung Son

IPC: H04L5/00 ,  H04L27/18 ,  H04L27/26 ,  H04L1/00 ,  H04L29/08 ,  H04L29/06 ,  H04L1/08 ,  H04W80/04 ,  H04W84/12

Abstract: A wireless communication terminal for wireless communication is disclosed. The wireless communication terminal includes: a transceiver; and a processor. The processor is configured to transmit a non-legacy physical layer frame including a legacy signaling field including information decodable by a legacy wireless communication terminal by using the transceiver.

公开(公告)号：US20200092880A1

公开(公告)日：2020-03-19

申请号：US16581554

申请日：2019-09-24

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Kyungjun CHOI ,  Minseok NOH ,  Jinsam KWAK

IPC: H04W72/04

Abstract: The present invention relates to a wireless communication system. In particular, the present invention relates to a method including: receiving configuration information on a periodic signal through a higher layer signal, wherein a transmission/reception position of the periodic signal is configured to a first set of symbols within each slot which is set periodically; monitoring a PDCCH associated with a slot configuration of a first slot in order to receive slot configuration information for the first slot in which the transmission/reception position of the periodic signal is present; and performing a process for transmitting/receiving the periodic signal in the first slot, wherein when the first set of symbols within the first slot is designated as a flexible symbol by a higher layer, a transmission/reception of the periodic signal in the first slot is selectively performed according to a detection result of the PDCCH, and wherein the flexible symbol means a symbol whose purpose can be re-designated to DL, UL or flexible according to the slot configuration information of the PDCCH, and an apparatus therefor.

公开(公告)号：US10575332B2

公开(公告)日：2020-02-25

申请号：US15912570

申请日：2018-03-06

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko

IPC: H04W74/08 ,  H04W84/12 ,  H04B17/318 ,  H04W72/08

Abstract: The present invention relates to a wireless communication method for simultaneous data communication and a wireless communication terminal using the same, and more particularly, to a wireless communication method for suppressing interference between terminals and ensuring fairness when performing data simultaneous communication for spatial reuse of communication system and wireless communication terminal using the same.For this, provided are a wireless communication method and a wireless communication terminal using the same. The method includes: receiving a wireless signal of a specific channel; extracting basic service set (BSS) identifier information of the received wireless signal; extracting length information from the wireless signal wherein the length information represents information relating to a transmission completion time point of the wireless signal; and adjusting a data transmission period of the terminal based on the extracted length information, when the BSS identifier information of the wireless signal is different from BSS identifier information of the terminal.

公开(公告)号：US10542561B2

公开(公告)日：2020-01-21

申请号：US15968688

申请日：2018-05-01

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Minseok Noh ,  Jinsam Kwak ,  Juhyung Son

IPC: H04W74/00 ,  H04W16/14 ,  H04W72/04 ,  H04W72/14

Abstract: A method, a device, and a system for transmitting a downlink signal is provided. The method includes monitoring a first common control channel indicating a downlink (DL) interval of subframe (SF) #(n−1) and SF #n, monitoring a second common control channel indicating a DL interval of SF #n and SF #(n+1), and performing a DL reception process in the SF #n based on a detection result of the first common control channel and a detection result of second common control channel. The DL interval represents occupied OFDM symbols in a DL subframe.

公开(公告)号：US20200015166A1

公开(公告)日：2020-01-09

申请号：US16512324

申请日：2019-07-15

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Woojin AHN ,  Juhyung SON ,  Jinsam KWAK

IPC: H04W52/02 ,  H04L27/00

Abstract: A wireless communication terminal communicating wirelessly is provided. The wireless communication terminal includes: a first wireless transceiver for transmitting and receiving a signal transmitted through a first modulation method; a second wireless receiver for receiving a signal transmitted through a second modulation method different from the first modulation method; and a processor. The processor receives a wake-up packet from a base wireless communication terminal through the second wireless receiver, and wakes-up the first wireless transceiver based on the wake-up packet, and maintains the second wireless receiver in a state capable of receiving at least from a time point at which the wake-up packet is received until a time point an exchange of frames with the base wireless communication terminal for the first time through the first wireless transceiver.

公开(公告)号：US20190357251A1

公开(公告)日：2019-11-21

申请号：US16528546

申请日：2019-07-31

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Jinsoo Ahn ,  Yongho Kim ,  Jinsam Kwak ,  Juhyung Son

IPC: H04W74/08 ,  H04W84/12 ,  H04W72/04

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver and a processor. The processer performs a contention procedure based on a back-off counter, in each of a plurality of channel and accesses, by using the transceiver, at least one of the plurality of channels based on the contention procedure.

公开(公告)号：US10477589B2

公开(公告)日：2019-11-12

申请号：US15676985

申请日：2017-08-14

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Woojin Ahn ,  Yongho Kim ,  Jinsam Kwak ,  Juhyung Son

IPC: H04W74/08 ,  H04W84/12 ,  H04W72/04 ,  H04W52/02 ,  H04W28/02

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling simultaneous uplink transmissions of a plurality of terminals.To this end, provided are a wireless communication terminal, the terminal including: a transceiver; and a processor, wherein the processor receives, through the transceiver, a trigger frame transmitted by a base wireless communication terminal, and performs a multi-user uplink transmission based on the received trigger frame, wherein the trigger frame includes a predetermined field indicating whether an additional trigger frame is present or not, and a wireless communication method using the same.

公开(公告)号：US20190319738A1

公开(公告)日：2019-10-17

申请号：US16449132

申请日：2019-06-21

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Woojin AHN ,  Juhyung SON ,  Geonjung KO ,  Jinsam KWAK

IPC: H04L1/00 ,  H04W72/04 ,  H04L1/16 ,  H04W72/12 ,  H04W80/02

Abstract: The present invention relates to a method for transmitting an aggregate MPDU and a response frame thereto and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for setting various formats of the aggregate MPDU and the response frame thereto and performing an efficient data communication by using the same. To this end, provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor receives an aggregate MPDU (A-MPDU) consisting of one or more MAC protocol data units (MPDUs), determines a format of a response frame for the received A-MPDU, and transmits a response frame of the determined format, wherein the format of the response frame for the A-MPDU is determined based on at least one of the number of traffic IDs (TIDs) soliciting an immediate response in MPDU(s) successfully received in the A-MPDU and MPDU delimiter information of the A-MPDU and a wireless communication method using the same.

公开(公告)号：US10440745B2

公开(公告)日：2019-10-08

申请号：US15673366

申请日：2017-08-09

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Jinsoo Ahn ,  Yongho Kim ,  Jinsam Kwak ,  Juhyung Son

IPC: H04W4/00 ,  H04W74/08 ,  H04W84/12 ,  H04W72/04 ,  H04W88/02

Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver and a processor. The processor performs a contention procedure based on a back-off counter, in each of a plurality of channel and accesses, by using the transceiver, at least one of the plurality of channels based on the contention procedure.