公开(公告)号：US11160135B2

公开(公告)日：2021-10-26

申请号：US16555942

申请日：2019-08-29

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyung Oh ,  Gwang Zeen Ko ,  Hyun Duk Kang ,  Igor Kim ,  Myung Sun Song

IPC: H04W80/02 ,  H04L1/18 ,  H04W28/06 ,  H04W72/00 ,  H04W84/12

Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).

公开(公告)号：US11139863B2

公开(公告)日：2021-10-05

申请号：US16578100

申请日：2019-09-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung Lee ,  Jin Hyung Oh ,  Gwang Zeen Ko ,  Hyun Duk Kang ,  Hyoung Jin Kwon ,  Myung Sun Song ,  Sok Kyu Lee ,  Min Ho Cheong ,  Jae Ick Choi

IPC: H04B7/024 ,  H04B7/0452 ,  H04B7/06 ,  H04L1/00 ,  H04L1/16 ,  H04W48/00 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.

公开(公告)号：US10045222B2

公开(公告)日：2018-08-07

申请号：US14890883

申请日：2014-05-09

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Duk Kang ,  Gwang Zeen Ko ,  Myung Sun Song

IPC: H04W16/14

Abstract: Disclosed are methods of exchanging messages necessary for interaction among entities in a coexistence management system that manages a plurality of frequency sharing devices. Specifically, a method of exchanging messages in a coexistence management system including a coexistence enabler (CE), a coexistence manager (CM), and a coexistence discovery and information server (CDIS) includes generating, by the CM, a ReconfigurationRequest message, sending the ReconfigurationRequest message to the CE, and waiting for a ReconfigurationResponse message from the CE. The ReconfigurationRequest message includes at least one of an operating channel list of a white space object (WSO) served by the CE, a transmission power limitation, a flag indicating whether or not a channel is shared, a transmission schedule, and channel classification information.

公开(公告)号：US09814092B2

公开(公告)日：2017-11-07

申请号：US14577219

申请日：2014-12-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jin Hyung Oh ,  Gwang Zeen Ko ,  Hyun Duk Kang ,  Igor Kim ,  Myung Sun Song

IPC: H04W80/02 ,  H04L1/18 ,  H04W28/06 ,  H04W72/00 ,  H04W84/12

CPC classification number: H04W80/02 ,  H04L1/1861 ,  H04W28/06 ,  H04W72/00 ,  H04W84/12

Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).