公开(公告)号：US20200351059A1

公开(公告)日：2020-11-05

申请号：US16935858

申请日：2020-07-22

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

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

IPC: H04L5/00 ,  H04W84/12 ,  H04W74/08 ,  H04W74/00

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes: a transceiver; and a processor. The processor receiving trigger information from a base wireless communication terminal using the transceiver, and transmits an Aggregate-MAC Protocol Data Unit (A-MPDU) to the base wireless communication terminal based on the trigger information.

公开(公告)号：US20200344646A1

公开(公告)日：2020-10-29

申请号：US16928838

申请日：2020-07-14

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

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

IPC: H04W28/06 ,  H04W28/14 ,  H04W28/02 ,  H04W74/00 ,  H04W76/11

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a trigger frame for triggering that a frame for setting a link with a wireless communication terminal, which is an AP, is transmitted through UpLink Multi User (UL MU) transmission through the transmission/reception unit. The processor transmits the frame for setting the link through UL MU transmission based on the trigger frame.

公开(公告)号：US20200322279A1

公开(公告)日：2020-10-08

申请号：US16908335

申请日：2020-06-22

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

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

IPC: H04L12/873 ,  H04L1/18 ,  H04L1/16 ,  H04L12/869 ,  H04L12/865 ,  H04W74/00 ,  H04W74/08

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling uplink multi-user transmission.To this end, provided are a base wireless communication terminal, including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the transceiver, wherein the processor selects an access category for transmitting a trigger frame which solicits an uplink multi-user transmission, performs a backoff procedure for transmitting the trigger frame based on the selected access category, and transmits the trigger frame when a backoff counter of the backoff procedure expires and a wireless communication method using the same.

公开(公告)号：US20200305196A1

公开(公告)日：2020-09-24

申请号：US16899435

申请日：2020-06-11

Applicant: Wilus Institute of Standards and Technology Inc. ,  SK TELECOM CO., LTD.

Inventor： Juhyung SON ,  Jinsam Kwak ,  Geonjung Ko

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

Abstract: The present invention relates to a wireless communication terminal and wireless communication method for clear channel assessment, and more particularly, to a wireless communication terminal and a wireless communication method for performing an efficient clear channel assessment for spatial reuse of a communication system.For this, provided are a wireless communication terminal comprising: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the terminal, wherein the processor is configured to: perform a backoff procedure of a channel for data transmission, suspend the backoff procedure when a wireless signal having a signal strength higher than a predetermined first clear channel assessment (CCA) threshold is received through the channel, identify whether the received wireless signal is a wireless signal of the same basic service set (BSS) as the terminal, and determine whether to resume the backoff procedure based on a CCA threshold determined according to the identification result and a wireless communication method using the same.

公开(公告)号：US20200296773A1

公开(公告)日：2020-09-17

申请号：US16844804

申请日：2020-04-09

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

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

IPC: H04W74/08 ,  H04B7/0417 ,  H04B7/06

Abstract: Provided is a wireless communication terminal that wirelessly communicates. the wireless communication terminal includes: a transceiver for transmitting and receiving a wireless signal; and a processor for processing the wireless signal. The processor is configured to perform a transmission based on a transmission opportunity (TXOP) limit which is a maximum value of a TXOP, which is a time interval in which a wireless communication terminal has a right to initiate a frame exchange sequence in a wireless medium.

公开(公告)号：US10771910B2

公开(公告)日：2020-09-08

申请号：US16395242

申请日：2019-04-26

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Hyunoh Oh ,  Taegyu Lee ,  Jinsam Kwak ,  Juhyung Son

IPC: H04S3/00 ,  G10L19/20

Abstract: The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesize an object signal and a channel signal and effectively perform binaural rendering of the synthesized signal.To this end, provided are a method for processing an audio signal, which includes: receiving an input audio signal including a multi-channel signal; receiving truncated subband filter coefficients for filtering the input audio signal, the truncated subband filter coefficients being at least some of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal and the length of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using reverberation time information extracted from the corresponding subband filter coefficients; obtaining vector information indicating the BRIR filter coefficients corresponding to each channel of the input audio signal; and filtering each subband signal of the multi-channel signal by using the truncated subband filter coefficients corresponding to the relevant channel and subband based on the vector information and an apparatus for processing an audio signal by using the same.

公开(公告)号：US20200267654A1

公开(公告)日：2020-08-20

申请号：US16868536

申请日：2020-05-07

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

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

IPC: H04W52/02 ,  H04L1/00 ,  H04W74/00 ,  H04L5/00 ,  H04L29/08 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04W74/08

Abstract: The present invention relates to a wireless communication method and a wireless communication terminal using a non-contiguous channel. To this end, provided are a wireless communication terminal including a processor and a transceiver, wherein the processor receives a wireless packet through the communication unit, obtains total bandwidth information indicated via a bandwidth field of HE-SIG-A of the received packet, obtains information of an unassigned resource unit via at least one of the bandwidth field of the HE-SIG-A and a subfield of HE-SIG-B of the received packet, and decodes the received packet based on the total bandwidth information and the information of the unassigned resource unit and a wireless communication method using the same.

公开(公告)号：US20200267653A1

公开(公告)日：2020-08-20

申请号：US16868525

申请日：2020-05-06

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

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

IPC: H04W52/02 ,  H04L1/00 ,  H04W74/00 ,  H04L5/00 ,  H04L29/08 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04W74/08

Abstract: The present invention relates to a wireless communication method and a wireless communication terminal using a non-contiguous channel. To this end, provided are a wireless communication terminal including a processor and a transceiver, wherein the processor receives a wireless packet through the communication unit, obtains total bandwidth information indicated via a bandwidth field of HE-SIG-A of the received packet, obtains information of an unassigned resource unit via at least one of the bandwidth field of the HE-SIG-A and a subfield of HE-SIG-B of the received packet, and decodes the received packet based on the total bandwidth information and the information of the unassigned resource unit and a wireless communication method using the same.

公开(公告)号：US20200245375A1

公开(公告)日：2020-07-30

申请号：US16851108

申请日：2020-04-17

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

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

IPC: H04W74/08 ,  H04L27/00 ,  H04L5/00 ,  H04W72/12 ,  H04L1/18 ,  H04L1/00 ,  H04W28/26 ,  H04W74/00

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling multi-user uplink transmission.To this end, provided are a wireless communication terminal, including: a transceiver; and a processor, wherein the processor is configured to: receive, by the transceiver, a trigger frame that triggers a multi-user uplink transmission, perform a multi-user uplink transmission in response to the received trigger frame, and receive, by the transceiver, an ACK for the multi-user uplink transmission, wherein when the multi-user uplink transmission is performed on a resource unit in which a temporary association identifier (AID) is assigned by the received trigger frame, the processor obtains ACK information for the terminal from the ACK for the multi-user uplink transmission based on the temporary AID and a wireless communication method using the same.

公开(公告)号：US20200244402A1

公开(公告)日：2020-07-30

申请号：US16851101

申请日：2020-04-17

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

Inventor： Juhyung Son ,  Jinsam Kwak ,  Geonjung Ko ,  Woojin Ahn

IPC: H04L1/16 ,  H04W84/12 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L29/06

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a Downlink Multi-User (DL MU) PPDU including information for an Uplink Multi-User (UL MU) transmission from a base wireless communication terminal by using the transceiver, and transmit the UL MU PPDU to the base wireless communication terminal based on the information for UL MU transmission.