公开(公告)号：US20150063233A1

公开(公告)日：2015-03-05

申请号：US14379996

申请日：2013-02-28

Applicant: LG ELECTRONICS, INC.

Inventor： Jinsoo Choi ,  Seunghee Han ,  Jinsam Kwak ,  Yongho Seok ,  Jeongki Kim

IPC: H04W72/04 ,  H04W88/08

CPC classification number: H04W72/0446 ,  H04W52/0216 ,  H04W74/002 ,  H04W74/06 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Disclosed is a method for setting a service period (SP) of a station (STA) in a wireless communication system and an apparatus for supporting the method. More particularly, the method comprises a step of transmitting a trigger frame to an access point (AP) and starting the service period. The trigger frame may be a data frame that includes data to be transmitted to the AP or a null frame for triggering the data transmission of the AP.

Abstract translation: 公开了一种用于在无线通信系统中设置站（STA）的服务周期（SP）的方法和用于支持该方法的装置。 更具体地，该方法包括将触发帧发送到接入点（AP）并开始服务周期的步骤。 触发帧可以是包括要发送到AP的数据或用于触发AP的数据传输的空帧的数据帧。

公开(公告)号：US20150009929A1

公开(公告)日：2015-01-08

申请号：US14377287

申请日：2013-02-21

Applicant: LG ELECTRONICS INC. ,  Korea University Research & Business Foundation

Inventor： Eunsung Park ,  Inkyu Lee ,  Wookbong Lee ,  Jinsam Kwak

IPC: H04W64/00 ,  H04W24/08 ,  H04W72/04

CPC classification number: H04W64/006 ,  H04B7/024 ,  H04B7/0658 ,  H04L1/0013 ,  H04L1/0057 ,  H04L1/0088 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0091 ,  H04L27/2633 ,  H04L27/2636 ,  H04W24/08 ,  H04W72/042

Abstract: The present invention relates to a wireless access system, and more particularly, to a method and apparatus for optimizing a limited feedback in a distributed antenna systems (DSAs). In one aspect of the present invention, a method for optimizing a limited feedback in a wireless access system supporting a distributed antenna (DA) technique, the method comprises steps of receiving, a user equipment (UE) from a DA port, information related to a transmission power of the DA port; receiving a downlink signal from the DA port; measuring a distance between the UE and the DA port by using the downlink signal from the DA port; calculating a number of feedback bits based on the information of the transmission power and the distance between the UE and the DA port; and transmitting feedback information using the calculated number of feedback bits.

Abstract translation: 本发明涉及一种无线接入系统，更具体地说，涉及用于优化分布式天线系统（DSA）中有限反馈的方法和装置。 在本发明的一个方面，一种用于优化支持分布式天线（DA）技术的无线接入系统中的有限反馈的方法，所述方法包括以下步骤：从DA端口接收用户设备（UE），与 DA端口的传输功率; 从DA端口接收下行链路信号; 通过使用来自DA端口的下行链路信号来测量UE与DA端口之间的距离; 基于发送功率的信息和UE与DA端口之间的距离来计算反馈比特数; 以及使用所计算的反馈比特数发送反馈信息。

公开(公告)号：US20150009879A1

公开(公告)日：2015-01-08

申请号：US14378745

申请日：2013-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinsoo Choi

IPC: H04W52/02 ,  H04W74/00

CPC classification number: H04W52/0235 ,  H04L1/1614 ,  H04L1/1685 ,  H04W52/0216 ,  H04W74/002 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: A channel access method in a wireless communication system and an apparatus for supporting the same are disclosed. Particularly, the method comprises the steps of: transmitting a beacon frame containing a traffic indication map (TIM); and receiving a power pave (PS)-poll frame within a PS-Poll section set in a station (STA), to which downlink data is designated by the TIM, from the STA, wherein the PS-Poll section can be set differently for each STA within the entire PS-Poll section set in all STAs, to which downlink data is designated by the TIM.

Abstract translation: 公开了一种无线通信系统中的信道接入方法及其辅助装置。 特别地，该方法包括以下步骤：发送包含交通指示图（TIM）的信标帧; 以及在STA中设置的PS-Poll部分内接收由STA指定下行链路数据的功率铺路（PS） - 帧，其中PS-Poll部分可以针对 在所有STA中设置的整个PS-Poll部分内的每个STA，由TIM指定的下行链路数据。

公开(公告)号：US20150009878A1

公开(公告)日：2015-01-08

申请号：US14374433

申请日：2013-02-04

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinsoo Choi

IPC: H04W74/00 ,  H04W52/02

CPC classification number: H04W52/0209 ,  H04W4/70 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W52/0235 ,  H04W72/1289 ,  H04W74/004 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and apparatus for accessing channels in a wireless LAN system. The method for accessing channels in a station (STA) of the wireless communication system according to one embodiment of the present invention comprises the steps of transmitting a first frame of a channel access request to an access point (AP); and receiving, from the AP, a second frame related to whether access to the channel is allowed in response to the first frame, wherein the second frame can include a value for a channel access start offset with respect to the STA.

Abstract translation: 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及一种用于在无线LAN系统中访问信道的方法和装置。 根据本发明的一个实施例的用于访问无线通信系统的站（STA）中的信道的方法包括以下步骤：向接入点（AP）发送信道接入请求的第一帧; 以及从所述AP接收与响应于所述第一帧是否允许对所述信道的接入相关的第二帧，其中所述第二帧可以包括相对于所述STA的信道接入开始偏移的值。

公开(公告)号：US20150003369A1

公开(公告)日：2015-01-01

申请号：US14377534

申请日：2013-02-08

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Jinsam Kwak ,  Wookbong Lee ,  Seunghee Han

IPC: H04W74/08

CPC classification number: H04W74/0808 ,  H04W16/14

Abstract: One embodiment of the present invention relates to a method for transmitting a signal by a terminal in a wireless communication system which comprises a step wherein, during a predetermined time period in one portion of the frequency bandwidths from among the frequency bandwidths of channels used by said terminal, a carrier wave sensing signal of another terminal is transmitted in which information on the frequency bandwidths of the channel is included.

Abstract translation: 本发明的一个实施例涉及一种在无线通信系统中由终端发送信号的方法，该无线通信系统包括以下步骤：在所述频带所使用的信道的频带宽度的频带宽度的一部分中的预定时间段内， 发送另一个终端的载波检测信号，其中包括关于频道的频率带宽的信息。

公开(公告)号：US20140376474A1

公开(公告)日：2014-12-25

申请号：US14373093

申请日：2013-01-18

Applicant: LG Electronics Inc.

Inventor： Wookbong Lee ,  Seunghee Han ,  Suhwook Kim ,  Yongho Seok ,  Jinsam Kwak ,  Jinyoung Chun ,  Jaehyung Song

IPC: H04W72/02 ,  H04W48/16 ,  H04W16/14

CPC classification number: H04W72/02 ,  H04W16/14 ,  H04W48/16 ,  H04W72/08 ,  H04W84/12

Abstract: Disclosed are a method for setting an operating channel in a white space band and a device therefor. Particularly, a method for enabling a first device to set an operating channel in a white space band comprises the steps of: acquiring information on an available TV channel from a geo-location database; and setting an operating channel on the basis of the information on the available TV channel, wherein a center frequency of the operating channel can be set differently according to a TV channel used by an incumbent device among TV channels adjacent to the TV channel on which the operating channel is set.

Abstract translation: 公开了一种用于设置白色空间频带中的操作信道的方法及其装置。 特别地，一种使第一设备能够在白色空间频段中设置操作信道的方法包括以下步骤：从地理位置数据库获取关于可用TV频道的信息; 并且根据可用TV频道上的信息来设置操作频道，其中可以根据现有设备在与TV频道相邻的TV频道中使用的TV频道不同地设置操作频道的中心频率，其中， 操作通道设置。

公开(公告)号：US09838954B2

公开(公告)日：2017-12-05

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: H04W4/00 ,  H04W48/16 ,  H04W48/20 ,  H04W48/14 ,  H04W84/12 ,  H04W88/08

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.

公开(公告)号：US09820302B2

公开(公告)日：2017-11-14

申请号：US14394185

申请日：2013-04-15

Applicant: LG Electronics Inc.

Inventor： Jinsoo Choi ,  Seunghee Han ,  Jinsam Kwak ,  Yongho Seok ,  Jeongki Kim

IPC: H04J3/00 ,  H04W74/04 ,  H04W72/02 ,  H04W74/08

CPC classification number: H04W74/04 ,  H04W72/02 ,  H04W74/0808

Abstract: One embodiment of the present invention is a method for performing channel access using a first station (STA) in a wireless communication system, comprising: a step of receiving a traffic indication map (TIM) bitmap; and a step of attempting channel access for a wireless medium in a first time period indicated by the first TIM bitmap. The first STA attempts channel access for the wireless medium in a third time period which is one of the second time periods indicated by the TIM bitmap in the event that the first STA senses an operation of a second STA relating to the wireless medium in the first time period.

公开(公告)号：US09794864B2

公开(公告)日：2017-10-17

申请号：US14419226

申请日：2013-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Jinsam Kwak ,  Kiseon Ryu

IPC: H04W4/00 ,  H04W48/16 ,  H04W84/12 ,  H04W88/08

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

Abstract: Disclosed are a method and an apparatus for scanning in a wireless LAN. The method may comprise the following steps: an STA determining identifier information of an AP to be included in a probe request frame as a wildcard SSID and a wildcard BSSID, based on a first MLME; the STA receiving from the AP a frame including information on the BSSID of the AP and the SSID of the AP before a probe delay time expires; the STA determining wither the AP is a target AP based on the BSSID and the SSID; the STA redetermining the identifier information of the AP to be included in the probe request frame based on the BSSID and the SSID, when the AP is the target AP; and the STA unicasting a probe request frame that is re-determined based on the BSSID and the SSID.

公开(公告)号：US09609665B2

公开(公告)日：2017-03-28

申请号：US14387505

申请日：2013-03-25

Applicant: LG Electronics Inc.

Inventor： Jinsoo Choi ,  Jeongki Kim ,  Yongho Seok ,  Seunghee Han ,  Jinsam Kwak

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

CPC classification number: H04W74/0808 ,  H04W74/006 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and an apparatus for accessing a channel in a wireless LAN system. According to one embodiment of the present invention, a method for performing channel access by a station (STA) of a wireless communication system comprises: a step of receiving, from an access point (AP), information about the time window which does not allow channel access of a traffic indication map (TIM) mode STA; and a step of performing channel access based on the time window. In the event that the STA is a non-TIM mode STA, the channel access is performed in the time window. In the event that the STA is a TIM mode STA, the channel access is performed in the time interval indicated by the TIM, excluding the time window.