公开(公告)号：US20250016673A1

公开(公告)日：2025-01-09

申请号：US18889711

申请日：2024-09-19

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Seung LEE ,  Mln Ho CHEONG ,  Hyoung Jin KWON ,  Hee Jung YU ,  Jae Woo PARK ,  Sok Kyu LEE

IPC: H04W52/02 ,  H04L5/00 ,  H04W74/00 ,  H04W84/12

Abstract: A method and an apparatus for allocating a flexible transmission slot in a wireless local area network (LAN) system are disclosed. A flexible transmission slot allocation method of an access point (AP) in a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting a beacon including a traffic indication map (TIM) bit to a station, receiving a power save poll (PS-Poll) from the station in a slot implicitly allocated by the TIM bit, and transmitting an acknowledgement (ACK) including transmission slot allocation information on downlink data to the station.

公开(公告)号：US20200267741A1

公开(公告)日：2020-08-20

申请号：US16869374

申请日：2020-05-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung Jin KWON ,  Sok Kyu LEE ,  Jae Seung LEE ,  Min ho CHEONG

IPC: H04W72/12 ,  H04L25/02 ,  H04L27/26 ,  H04L5/00 ,  H04B7/0452

Abstract: Disclosed are a wireless communication method, and an access point and a station which perform the wireless communication method. A wireless communication method performed by an access point according to an embodiment may include performing channel sounding on a plurality of subchannels, identifying subchannels selected by stations among the subchannels, scheduling communications between the AP and the stations based on the selected subchannels, and transmitting a data frame to the stations through the subchannels based on a scheduling result.

公开(公告)号：US20180132247A1

公开(公告)日：2018-05-10

申请号：US15864932

申请日：2018-01-08

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung Jin KWON ,  Jin Kyeong KIM ,  Yong Sun KIM ,  Kyeongpyo KIM ,  Seung Eun HONG ,  Woo Yong LEE

IPC: H04W72/08 ,  H04W72/04 ,  H04L12/801 ,  H04B1/707 ,  H04L25/20 ,  H04B7/155 ,  H04L12/26

CPC classification number: H04W72/08 ,  H04B1/707 ,  H04B7/155 ,  H04L25/20 ,  H04L43/50 ,  H04L47/10 ,  H04W72/0426

Abstract: Provided is an apparatus and method for transmitting and receiving data using multiple paths in a wireless communication system using a distributed Media Access Control (MAC). More particularly, provided is an apparatus and method for transmitting and receiving data that may select a path with a better channel status from multiple paths that include a direct path using a Line of Sight (LOS) and a relay path passing through a relay apparatus, in a wireless communication system that may transmit data via the LOS using a distributed MAC and a directional antenna.

公开(公告)号：US20180098310A1

公开(公告)日：2018-04-05

申请号：US15706159

申请日：2017-09-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Ho CHEONG ,  Hyoung Jin KWON ,  Jae Seung LEE ,  Jae Woo PARK ,  Sok Kyu LEE

IPC: H04W72/04 ,  H04W56/00 ,  H04W84/12 ,  H04W74/00

CPC classification number: H04W72/044 ,  H04W56/0015 ,  H04W74/006 ,  H04W84/12

Abstract: Provided is a method and apparatus for allocating resources in a wireless local area network (WLAN) system, the method including determining a restricted access bandwidth (RAB) interval based on at least a bandwidth or a partial bandwidth among a plurality of bandwidths, and setting a restricted access window (RAW) of a time domain based on theRAB interval.

公开(公告)号：US20170353970A1

公开(公告)日：2017-12-07

申请号：US15686073

申请日：2017-08-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyoung Jin KWON ,  Jae Seung LEE ,  Min Ho CHEONG ,  Hee Jung YU ,  Sok Kyu LEE

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

CPC classification number: H04W72/1289 ,  H04W72/0446 ,  H04W74/04 ,  H04W84/12

Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.

公开(公告)号：US20170317728A1

公开(公告)日：2017-11-02

申请号：US15649887

申请日：2017-07-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jee Yon CHOI ,  Hyoung Jin KWON ,  Je Hun LEE ,  Sok Kyu LEE

IPC: H04B7/0452 ,  H04L1/16 ,  H04B7/0404 ,  H04W72/04 ,  H04W74/06

CPC classification number: H04B7/0452 ,  H04B7/0404 ,  H04L1/1614 ,  H04W72/04 ,  H04W74/06 ,  H04W88/02

Abstract: Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including determining at least one transmission station (STA), transmitting, to the transmission STA, an uplink multi-user poll (UL MU poll) frame requesting a data frame, receiving the data frame from the at least one transmission STA simultaneously, and transmitting an acknowledgement (ACK) frame to the at least one transmission STA in response to the receiving.

公开(公告)号：US20170257872A1

公开(公告)日：2017-09-07

申请号：US15603260

申请日：2017-05-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung LEE ,  Min Ho CHEONG ,  Hyoung Jin KWON ,  Sok Kyu LEE ,  Wun Cheol JEONG ,  Chang Sub SHIN ,  Cheol Sig PYO

IPC: H04W72/08 ,  H04W72/04 ,  H04W64/00

CPC classification number: H04W72/082 ,  H04B7/15507 ,  H04W52/0203 ,  H04W64/003 ,  H04W72/0446 ,  H04W74/006 ,  H04W84/047 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.

公开(公告)号：US20170215229A1

公开(公告)日：2017-07-27

申请号：US15482477

申请日：2017-04-07

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Seung LEE ,  Min Ho CHEONG ,  Hyoung Jin KWON ,  Hee Jung YU ,  Sok Kyu LEE

IPC: H04W92/20 ,  H04W8/00 ,  H04W4/00 ,  H04W28/06 ,  H04L29/08 ,  H04W84/12 ,  H04L12/12 ,  H04W48/16 ,  H04L29/12

CPC classification number: H04W48/16 ,  H04L12/12 ,  H04L61/1541 ,  H04L67/16 ,  H04W4/80 ,  H04W8/005 ,  H04W28/065 ,  H04W48/14 ,  H04W84/12 ,  H04W92/20

Abstract: A scanning method performed by a station (STA) in a wireless LAN system is provided. The method comprises: transmitting a probe request frame; and receiving a short probe response frame from an access point (AP) as a response to the probe request frame. The short probe response frame includes service set ID (SSID) information or compressed SSID information of the AP.

公开(公告)号：US20160309483A1

公开(公告)日：2016-10-20

申请号：US15131860

申请日：2016-04-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Ho CHEONG ,  Hyoung Jin KWON ,  Sok Kyu LEE ,  Jae Seung LEE

IPC: H04W72/08 ,  H04W4/06 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/082 ,  H04J11/0023 ,  H04L5/006 ,  H04W4/06 ,  H04W72/0413

Abstract: An interference alignment (AI) method for an uplink in a wireless local area network (WLAN) system, an access point (AP) and a user terminal for performing the same, and the AP that may select an interference space, broadcast information on the selected interference space, select a user terminal to be assigned a data transmission opportunity based on leakage of interference (LIF) information received from at least one user terminal, receive data from the user terminal, and decode the data using a minimum square error (MMSE) based receiving filter.

Abstract translation: 用于无线局域网（WLAN）系统中的上行链路的干扰对准（AI）方法，用于执行无线局域网（WLAN）系统的接入点（AP）和用户终端）以及可以选择干扰空间的AP，关于 选择的干扰空间，基于从至少一个用户终端接收的干扰（LIF）信息的泄漏，从用户终端接收数据，并使用最小平方误差（MMSE）对数据进行解码，选择要分配数据传输机会的用户终端 ）接收滤波器。

公开(公告)号：US20160309456A1

公开(公告)日：2016-10-20

申请号：US15132127

申请日：2016-04-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Ho CHEONG ,  Hyoung Jin KWON ,  Sok Kyu LEE ,  Jae Seung LEE

IPC: H04W72/04 ,  H04B7/04 ,  H04W52/24

CPC classification number: H04B7/0452 ,  H04W16/28 ,  H04W52/241 ,  H04W72/082 ,  H04W84/12

Abstract: An interference alignment (IA) method for a downlink in a wireless local area network (WLAN) system, an access point (AP) and a user terminal for performing the same are provided, wherein the AP may broadcast beam information on randomly selected beams and calculate an leakage of interference (LIF) based on the beam information received from the AP, the user terminal may generate feedback information including LIF information and transmit the feedback information to the AP, and the AP may determine a transmission power term with respect to each beam based on the feedback information received from the user terminal and transmit data to the user terminal based on the determined transmission power term.

Abstract translation: 提供了一种用于无线局域网（WLAN）系统中的下行链路的干扰对准（IA）方法，用于执行该无线局域网（WLAN）系统的接入点（AP）和用户终端），其中，AP可以在随机选择的波束上广播波束信息， 基于从AP接收到的波束信息计算出干扰泄漏（LIF），用户终端可以生成包括LIF信息的反馈信息并将反馈信息发送到AP，并且AP可以确定关于每个 基于从用户终端接收到的反馈信息，并基于确定的传输功率项向用户终端发送数据。