公开(公告)号：US20180132178A1

公开(公告)日：2018-05-10

申请号：US15699971

申请日：2017-09-08

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee PARK ,  Kiseon RYU ,  Suhwook KIM ,  Jeongki KIM ,  Hangyu CHO

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method for managing power of a wireless terminal in a wireless local area network (WLAN) system according to one embodiment includes: transmitting, by a first wireless terminal that switches between an awake state and a doze state based on a power save mode for power management, a target wake time (TWT) request frame for requesting first target beacon transmission time (TBTT) information, which indicates a reception time of a first beacon frame, and listen interval information, which indicates a reception interval for a subsequent beacon frame, to a second wireless terminal; receiving, by the first wireless terminal, a TWT response frame including the first TBTT information and the listen interval information from the second wireless terminal in response to the TWT request frame; switching, by the first wireless terminal, to the doze state after receiving the TWT response frame; switching, by the first wireless terminal, to the awake state according to the first TBTT information in order to receive the first beacon frame; and switching, by the first wireless terminal, to the doze state after receiving the first beacon frame.

公开(公告)号：US20180092032A1

公开(公告)日：2018-03-29

申请号：US15560092

申请日：2016-07-01

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM ,  Hyunhee PARK

IPC: H04W52/02 ,  H04L5/00 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W52/0216 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/26 ,  H04L27/2613 ,  H04W74/006 ,  H04W74/0833 ,  H04W74/085 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/1262 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method for performing uplink Orthogonal Frequency Division Multiple Access (UL OFDMA) based random access to an Access Point (AP) by a Station (STA) in a Wireless Local Area Network (WLAN) system is proposed. For the purpose, the STA sets a random value within an OFDMA Contention Window (CWO) as an OFDMA Back-Off (OBO) value, receives a beacon frame from the AP, the beacon frame including transmission start time information of one or more Trigger Frames for Random Access (TF-Rs), decrements the OBO value based on reception of the one or more TF-Rs, and if the OBO value reaches 0, transmits a random access request frame in resources selected randomly from among resources allocated to the STA.

公开(公告)号：US20180035461A1

公开(公告)日：2018-02-01

申请号：US15550005

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Jinyoung CHUN ,  Hangyu CHO

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W84/12

Abstract: Disclosed are a medium protection-based method and device for MU transmission in a wireless LAN. The medium protecting method for MU transmission in a wireless LAN can comprise the steps of: receiving, by an STA, an RTS frame transmitted on the basis of DL MU transmission by an AP; and determining, by the STA, whether to configure an NAV on the basis of an RA field of the RTS frame, wherein if the RTS frame is an MU RTS frame for acquiring MU TXOP, the RA field includes an RA control field and a plurality of RA simple identification fields, the MU TXOP indicates a time resource having a transmission right for DL MU transmission of downlink data, the RA control field includes information for indicating that the RTS frame is an MU RTS frame transmitted to acquire the MU TXOP, and each of the plurality of RA simple identification fields can include identification information of each of the plurality of STAs.

公开(公告)号：US20170374681A1

公开(公告)日：2017-12-28

申请号：US15537355

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Suhwook KIM ,  Hangyu CHO

IPC: H04W74/08 ,  H04W16/02 ,  H04W52/02 ,  H04L29/08 ,  H04W84/12

Abstract: A method by which an access point (AP) supports multi-basic service sets (BSSs) in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting a plurality of BSS identifiers for each individual BSS belonging to the multi-BSSs; and transmitting a frame for notifying a station (STA) of the plurality of BSS identifiers set for each individual BSS, wherein the plurality of BSS identifiers include a first BSS identifier and a second BSS identifier, which has a length shorter than that of the first BSS identifier, and the first BSS identifier is set to different values for each individual BSS, but the second BSS identifier can be set to the same value for all of the multi-BSSs.

公开(公告)号：US20170359159A1

公开(公告)日：2017-12-14

申请号：US15524240

申请日：2015-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO ,  Suhwook KIM

IPC: H04L5/00 ,  H04W72/04 ,  H04W84/12

Abstract: The present document relates to a method for transmitting, by an access point, an ACK/NACK signal for transmission data from a plurality of stations (STA) in a WLAN system and a device for the same. To this end, the AP transmits a trigger frame to the plurality of stations STA, receives the data transmitted from the plurality of STA in response to the trigger frame, and transmits the ACK/NACK signal for the data received from the plurality of STA. In this process, the ACK/NACK signal may be transmitted in the form of a multi-user block ACK (M-BA) frame that is composed of a 242 tones unit.

公开(公告)号：US20170303309A1

公开(公告)日：2017-10-19

申请号：US15509149

申请日：2014-12-31

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Wookbong LEE ,  Suhwook KIM ,  Jeongki KIM ,  Giwon PARK ,  Hangyu CHO

IPC: H04W74/00 ,  H04W74/08

CPC classification number: H04W74/006 ,  H04W74/004 ,  H04W74/0816

Abstract: Provided is a method and apparatus for protecting a TXOP in a wireless communication system. The method for protecting a TXOP may comprise the steps of: receiving a trigger frame containing information on a first interval for an exchange of multiple clear-to-send (CTS) frames from a transmission station (STA) by a reception STA; and transmitting CTS frames to the transmission STA in the first interval by the reception STA.

公开(公告)号：US20170295541A1

公开(公告)日：2017-10-12

申请号：US15101608

申请日：2014-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Giwon PARK ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W52/02 ,  H04W52/44 ,  H04W72/12

CPC classification number: H04W52/0216 ,  H04W52/0206 ,  H04W52/44 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: The present document relates to a power reduction mode operation of a STA in a wireless communication system. To this end, during the STA's power saving mode operation, the TIM (traffic indication map) reception, the PS poll signal transmission, and the data reception are performed through one of a downlink oriented channel and a general channel distinguished from the downlink oriented channel, and the STA may previously acquire information on whether the TIM reception, the PS poll signal transmission, and the data reception are performed through one channel of the downlink oriented channel and the general channel.

公开(公告)号：US20170135040A1

公开(公告)日：2017-05-11

申请号：US15319350

申请日：2015-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Giwon PARK ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W52/02 ,  H04W72/12 ,  H04W72/04

CPC classification number: H04W52/0225 ,  H04W48/12 ,  H04W52/0216 ,  H04W72/04 ,  H04W72/12 ,  H04W72/121 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: Disclosed are a method and apparatus for transmitting and receiving periodic data on the basis of a power save mode in a wireless LAN. The method for transmitting and receiving periodic data in a wireless LAN comprises: a step for receiving, by an access point (AP), each of a plurality of uplink frames including periodic uplink/downlink transmission fields, from each of a plurality of stations (STA); a step for determining, by the AP, a downlink resource for each of the plurality of periodic downlink frames to be transmitted to each of the plurality of STAs, and an uplink resource for each of the plurality of periodic uplink frames to be transmitted by each of the plurality of STAs; and a step for transmitting, by the AP, a multi-user (MU) scheduling frame including information on the downlink resource and information on the uplink resource, to each of the plurality of STAs.

公开(公告)号：US20170019927A1

公开(公告)日：2017-01-19

申请号：US15125083

申请日：2015-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Giwon PARK ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W74/0825 ,  H04L5/0055 ,  H04W16/28 ,  H04W48/10 ,  H04W72/04 ,  H04W72/1273 ,  H04W84/12 ,  H04W88/08

Abstract: The present disclosure relates to a wireless communication system, and in particular to a data transmission operation of an AP in a wireless LAN system. To this end, the AP may obtain information on a STA located at an overlapping basic service set (OBSS) from among STAs connected to the AP, and determines, based thereon, (1) whether to transmit data from the AP through a downlink oriented channel or a general channel different from the downlink oriented channel, or (2) whether to use one or more of a distributed coordination function (DCF) procedure and an enhanced distributed channel access (EDCA) procedure.

Abstract translation: 本公开涉及一种无线通信系统，特别涉及无线LAN系统中的AP的数据传输操作。 为此，AP可以从连接到AP的STA中的位于重叠基本业务集（OBSS）的STA获取信息，并且基于（1）是否通过下行链路定向从AP发送数据 信道或与下行链路定向信道不同的通用信道，或者（2）是否使用分布式协调功能（DCF）过程和增强型分布式信道接入（EDCA）过程中的一个或多个。

公开(公告)号：US20160278080A1

公开(公告)日：2016-09-22

申请号：US15034632

申请日：2014-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Jinyoung CHUN ,  Hangyu CHO

IPC: H04W72/04 ,  H04W76/02 ,  H04W74/08

CPC classification number: H04W72/0446 ,  H04B1/713 ,  H04B2001/6908 ,  H04W74/0816 ,  H04W76/14

Abstract: Disclosed are a D2D communication method and device on the basis of a hopping sequence. A D2D communication method on the basis of a hopping sequence may comprise the steps of obtaining information on a reference hopping sequence by a terminal wherein the reference hopping sequence is a current hopping sequence of a target terminal which will perform first D2D communication on the basis of a first link with the terminal; determining a final hopping sequence for performing the first D2D communication by the terminal on the basis of whether the terminal is an initial access terminal or a multi-access terminal and whether the current hopping sequence of the terminal is the same as at least one of communicable hopping sequences corresponding to a reference sequence and the reference hopping sequence; and performing the first D2D communication by the terminal on the basis of the final hopping sequence.

Abstract translation: 公开了基于跳频序列的D2D通信方法和设备。 基于跳频序列的D2D通信方法可以包括以下步骤：由终端获取关于参考跳频序列的信息，其中参考跳频序列是目标终端的当前跳频序列，该目标终端将基于 与终端的第一个链接; 基于终端是初始接入终端还是多接入终端，确定终端执行第一D2D通信的最终跳频序列，以及终端的当前跳频序列是否与可通信的终端中的至少一个相同 对应于参考序列和参考跳频序列的跳频序列; 以及基于最终跳频序列，由终端执行第一D2D通信。