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：US20170295561A1

公开(公告)日：2017-10-12

申请号：US15516007

申请日：2016-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Wookbong LEE ,  Kiseon RYU ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W72/04 ,  H04B7/0413 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04B7/0413 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0091 ,  H04L5/0094 ,  H04L5/0098 ,  H04L27/2602 ,  H04W84/12 ,  H04W88/08

Abstract: The present document relates to a method for allocating resources for multi-user or multi-station (STA) data transmission in a wireless LAN system, and an apparatus therefor. To this end, an AP generates a frame including a signaling field and a data field, wherein the signaling field includes a first signaling field (SIG A field) comprising common control information for a plurality of STAs and a second signaling field (SIG B field) comprising user specific control information for each of the plurality of STAs, the second signaling field also comprising data transmission resource allocation information for each of the plurality of STAs. The AP transmits the thus generated frame to the plurality of STAs. If the frame is transmitted with a bandwidth of 40 MHz or greater, the second signaling field transmits independent control information in two adjacent 20 MHz bands, and the second signaling field, transmitted through a specific 20 MHz band, comprises data transmission resource allocation information within the specific 20 MHz band.

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：US20170289819A1

公开(公告)日：2017-10-05

申请号：US15471932

申请日：2017-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W16/14 ,  H04W74/08 ,  H04W52/28

CPC classification number: H04W16/14 ,  H04W52/286 ,  H04W52/383 ,  H04W74/002 ,  H04W74/0808 ,  H04W84/12

Abstract: A method for a STA (Station) to transmit a frame to another STA is disclosed. The method includes preparing a VHT (Very High Throughput) frame including a first signaling field (VHT SIG A), a second signaling field (VHT SIG B) and a service field. One of the VHT SIG A, the VHT SIG B and the service field includes a subfield informing spatial reuse (SR) operation when the STA is capable to supporting HE (High Efficiency) WLAN (Wireless Local Area Network) scheme.

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：US20170079027A1

公开(公告)日：2017-03-16

申请号：US15242008

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

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

CPC classification number: H04W72/0413 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0639 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0075 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0055 ,  H04W4/70 ,  H04W28/10 ,  H04W72/048 ,  H04W72/082 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

Abstract translation: 本文公开了一种用于在无线LAN（WLAN）系统中发送关于下行链路（DL）信道状态的反馈信息的站（STA）的探测方法。 所述探测方法包括接收提供空数据分组（NDP）帧的传输通知的NDP通知（NDPA）帧; 接收NDP帧; 接收包括分配给所述STA的资源分配信息的触发帧; 使用NDP帧生成反馈信息; 以及使用由所述资源分配信息指示的频率资源，通过上行链路（UL）多用户（MU）传输来发送包括反馈信息的反馈帧。 相对于尺寸小于或等于NDP帧的传输带宽的大小的传输带宽，反馈信息可以以频率粒度（FG）单元生成。

公开(公告)号：US20170070948A1

公开(公告)日：2017-03-09

申请号：US15355954

申请日：2016-11-18

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Yongho SEOK ,  Jinsam KWAK ,  Jinsoo CHOI ,  Kiseon RYU ,  Giwon PARK

IPC: H04W48/16 ,  H04W48/20

CPC classification number: H04W48/16 ,  H04W48/14 ,  H04W48/20 ,  H04W84/12 ,  H04W88/08

Abstract: The present invention relates to a method and a device for updating system information in a wireless LAN system. A method for updating system information in a station (STA) of a wireless communication system may comprise transmitting, by the STA which stores system information and a configuration change count value of a previously linked preferred access point (AP), a probe request frame for active scanning to the preferred AP; and receiving a probe response frame from the preferred AP. Preferably, the probe request frame includes a configuration change count field previously acquired from the preferred AP, and if a value of the configuration change count field included in the probe request frame is different from a present configuration change count value of the preferred AP, the probe response frame may include one or more elements of system information which should be updated by the STA.

Abstract translation: 本发明涉及一种在无线LAN系统中更新系统信息的方法和装置。 一种用于更新无线通信系统的站（STA）中的系统信息的方法可以包括由存储系统信息的STA和先前链接的优选接入点（AP）的配置改变计数值来发送用于 主动扫描到首选AP; 并从优选AP接收探测响应帧。 优选地，探测请求帧包括先前从优选AP获取的配置改变计数字段，并且如果探测请求帧中包括的配置改变计数字段的值与优选AP的当前配置改变计数值不同，则 探测响应帧可以包括应由STA更新的系统信息的一个或多个元素。

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：US20170013645A1

公开(公告)日：2017-01-12

申请号：US15119346

申请日：2014-12-17

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Kiseon RYU ,  Wookbong LEE ,  Jinyoung CHUN ,  Dongguk LIM ,  Hangyu CHO

IPC: H04W74/08 ,  H04W52/14 ,  H04W72/04

CPC classification number: H04W74/0816 ,  H04W52/143 ,  H04W72/0453 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for transmitting a frame in a wireless LAN. The method for transmitting a frame in a wireless LAN may comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a first STA set; receiving, by the AP, CTS frames, in sequence, from each of a plurality of STAs included in a second STA set in response to the RTS frame, the second STA set being included in the first STA set; and transmitting, by the AP, each of a plurality of PPDUs to each of the plurality of STAs via each of a plurality of subbands for each of the plurality of STAs on an overlapping time resource.

Abstract translation: 公开了一种用于在无线LAN中发送帧的方法和装置。 用于在无线LAN中发送帧的方法可以包括以下步骤：由AP向第一STA组发送用于中等保护的RTS帧; 由AP接收响应于RTS帧的包括在第二STA集合中的多个STA中的每一个的CTS帧，第二STA集合被包括在第一STA集合中; 以及由所述AP将多个PPDU中的每一个通过重叠时间资源上的所述多个STA中的每一个的多个子带中的每一个发送到所述多个STA中的每一个。

公开(公告)号：US20160128101A1

公开(公告)日：2016-05-05

申请号：US14890142

申请日：2014-05-12

Applicant: LG ELECTRONICS INC.

Inventor： Giwon PARK ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08 ,  H04W72/10

CPC classification number: H04W74/0833 ,  H04W72/10 ,  H04W74/085 ,  H04W84/12

Abstract: Disclosed are a channel access method and an apparatus therefor. A channel access method in a wireless LAN includes the steps of determining whether an STA (station) changes a first access category for a probe request frame; and if a first access category is changed to a second access category, performing a back-off process for enabling the STA to transmit the probe request frame based on the second access category, wherein the second access category may have a lower priority than the first access category.

Abstract translation: 公开了一种信道接入方法及其装置。 无线LAN中的信道接入方法包括以下步骤：确定STA（站）是否改变探测请求帧的第一接入类别; 并且如果第一访问类别被改变为第二访问类别，则执行用于使所述STA能够基于所述第二访问类别来发送所述探测请求帧的退避处理，其中所述第二访问类别可以具有比所述第一访问类别低 访问类别。