公开(公告)号：US09544175B2

公开(公告)日：2017-01-10

申请号：US14391131

申请日：2013-04-15

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04W74/00 ,  H04L29/06 ,  H04W12/06 ,  H04L1/00

CPC classification number: H04L27/2649 ,  H04L1/0053 ,  H04L1/0075 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2627 ,  H04L69/22 ,  H04W12/06 ,  H04W74/00 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for performing or supporting selective decoding of a beacon frame in a wireless LAN system. A method of decoding a frame by a station STA in a wireless communication system according to an embodiment of the present invention may include: determining whether to decode each of a first data portion and a second data portion of the frame; and decoding one or more of the first data portion and the second data portion if it is determined that the decoding is performed. Hence, the frame may further include information that is used for the determination by the station STA on whether to decode each of the first data portion and the second data portion, and whether to decode may be determined on the basis of whether to change one or more of the first data portion and the second data portion.

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，涉及用于在无线LAN系统中执行或支持信标帧的选择性解码的方法和设备。 根据本发明的实施例的在无线通信系统中的站STA对帧进行解码的方法可以包括：确定是否解码帧的第一数据部分和第二数据部分中的每一个; 以及如果确定执行了解码，则对第一数据部分和第二数据部分中的一个或多个进行解码。 因此，帧可以进一步包括用于站STA对是否对第一数据部分和第二数据部分中的每一个进行解码的信息，以及是否可以基于是否改变一个或 更多的第一数据部分和第二数据部分。

公开(公告)号：US09538555B2

公开(公告)日：2017-01-03

申请号：US14419228

申请日：2013-08-14

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jinsoo Choi ,  Jinsam Kwak ,  Yongho Seok

IPC: H04W4/00 ,  H04W74/08 ,  H04W84/12 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for accessing a channel in a wireless LAN. A method for a station (STA) initially accessing the channel in the wireless LAN comprises the steps of: the STA receiving from an access point (AP) a frame including channel state information and a set of an N (a natural number wherein N>1) number of access parameter sets; the STA selecting a random variable when the channel state information indicates that a wireless link is busy; the STA selecting one access parameter set from the N number of access parameter sets on the basis of the one access parameter and transmitting an association request frame to the AP.

Abstract translation: 公开了一种用于访问无线LAN中的信道的方法和装置。 一种用于在无线LAN中初始访问信道的站（STA）的方法包括以下步骤：STA从接入点（AP）接收包括信道状态信息的帧和一组N（自然数，其中N> 1）访问参数集数; 当信道状态信息指示无线链路忙时，STA选择随机变量; 所述STA基于所述一个访问参数从所述N个访问参数集合中选择一个访问参数集，并向所述AP发送关联请求帧。

公开(公告)号：US09538470B2

公开(公告)日：2017-01-03

申请号：US14426660

申请日：2013-09-17

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Yongho Seok ,  Jeongki Kim ,  Hangyu Cho

IPC: H04W52/02 ,  H04W72/04 ,  H04W48/14 ,  H04W4/00 ,  H04W84/14 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04W4/70 ,  H04W48/14 ,  H04W72/04 ,  H04W72/0413 ,  H04W84/12 ,  H04W84/14 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for updating a listen interval in a wireless communication system. To this end, a method for updating a listen interval by a station (STA) of a wireless communication system may comprise, if an operation mode of the station is changed, a request frame including information indicating that the operation mode of the station is changed, to an access point (AP); and receiving a response frame in response to the request frame from the AP. If a value of a listen interval of the station is changed as the operation mode of the station is changed, the request frame further include a value of a new listen interval of the station.

Abstract translation: 公开了一种用于更新无线通信系统中的监听间隔的方法和装置。 为此，用于通过无线通信系统的站（STA）更新监听间隔的方法可以包括：如果站的操作模式改变，则包括指示站的操作模式改变的信息的请求帧 ，到接入点（AP）; 以及响应于来自AP的请求帧而接收响应帧。 如果站的监听间隔的值随着站的操作模式改变而改变，则请求帧还包括站的新的监听间隔的值。

公开(公告)号：US20160360473A1

公开(公告)日：2016-12-08

申请号：US15237061

申请日：2016-08-15

Applicant: LG Electronics Inc.

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

IPC: H04W48/14 ,  H04W72/04 ,  H04W48/16

CPC classification number: H04W48/14 ,  H04W24/02 ,  H04W48/16 ,  H04W72/0446 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for updating system information in a wireless LAN system. A method for a station (STA) to update system information in a wireless communication system according to one embodiment of the present invention comprises the steps of: if the value of a change sequence field received by the STA from an access point (AP) is different from the value of the change sequence field stored in the STA, transmitting, to the AP, a probe request frame including the change sequence field set to the value of the change sequence field stored in the STA; and a step of receiving, from the AP, a probe response frame responding to the probe request frame including the change sequence field.

公开(公告)号：US09491701B2

公开(公告)日：2016-11-08

申请号：US14395306

申请日：2013-04-18

Applicant: LG Electronics Inc.

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

IPC: G08C17/00 ,  H04W52/02

Abstract: One embodiment of the present invention relates to a method for transmitting a signal of a station (STA) operable in a power saving mode in a wireless communication system, and the method for transmitting a signal comprises a step of transmitting a PS-Poll frame and/or a trigger frame according to a first time period, wherein an integrated scaling factor is applied to the first time period, and the integrated scaling factor is also commonly applied to a second time period in which the STA can omit frame transmission by maintaining an association state with an access point (AP).

公开(公告)号：US09467890B2

公开(公告)日：2016-10-11

申请号：US14378596

申请日：2013-02-18

Applicant: LG ELectronics Inc.

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

IPC: H04W28/02 ,  H04W72/12 ,  H04W4/00

CPC classification number: H04W28/0278 ,  H04W4/70 ,  H04W28/0263 ,  H04W72/1289

Abstract: The present invention relates to a method for transmitting and receiving a traffic indication map in a wireless communication system, and to an apparatus for same. More particularly, the method includes a step of transmitting a traffic indication map (TIM) to a station (STA) through a beacon frame, wherein the TIM can include a bitmap field configured of one or more sub-block bitmaps for indicating whether buffered downlink data exists for an STA which is grouped to one or more sub-blocks, and a block control field indicating an encoding scheme of the bitmap field.

Abstract translation: 本发明涉及一种在无线通信系统中发送和接收业务指示图的方法及其装置。 更具体地，该方法包括通过信标帧向站（STA）发送业务指示映射（TIM）的步骤，其中，所述TIM可以包括由一个或多个子块位图配置的位图字段，用于指示是否缓冲的下行链路 对于分组为一个或多个子块的STA存在数据，以及指示位图字段的编码方案的块控制字段。

公开(公告)号：US09439079B2

公开(公告)日：2016-09-06

申请号：US14824672

申请日：2015-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Eunsun Kim ,  Yongho Seok

IPC: H04W72/00 ,  H04W16/14 ,  H04W72/04 ,  H04W4/00 ,  H04W4/02 ,  H04W84/12

CPC classification number: H04W16/14 ,  H04W4/00 ,  H04W4/02 ,  H04W72/00 ,  H04W72/04 ,  H04W72/044 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transceiving channel availability query and response in a wireless communication system. According to the present invention, a scheme is provided to enable devices which operate in TVWS to request/response information on an available channel in a plurality of geographical locations in a more accurate and efficient manner.

公开(公告)号：US09392618B2

公开(公告)日：2016-07-12

申请号：US14388973

申请日：2013-03-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04L12/26 ,  H04J3/00 ,  H04B7/212 ,  H04W72/00 ,  G06F15/173 ,  H04W74/00 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W74/002 ,  H04W74/0808 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and a method and apparatus for controlling channel access in a wireless LAN system. The method for controlling the channel access of a station (STA) of a wireless communication system according to the present invention comprises detecting a short frame transmitted by another STA; and deferring the channel access of the STA by a predetermined length of time. The short frame is a frame that triggers a service period during which the transceiving of a plurality of data frames of the other STA is allowed. The predetermined length of time can be set to the value corresponding to the length of time ranging from the start of the service period to the point in time at which the transceiving of a first data frame from among the plurality of data frames of the other STA is completed.

Abstract translation: 本发明涉及一种无线通信系统，以及用于控制无线LAN系统中的信道接入的方法和装置。 根据本发明的用于控制无线通信系统的站（STA）的信道接入的方法包括检测由另一个STA发送的短帧; 并延迟STA的信道接入预定时间长度。 短帧是触发允许其他STA的多个数据帧的收发的服务期间的帧。 预定时间长度可以被设置为对应于从服务周期开始到从另一个STA的多个数据帧中收发第一数据帧的时间点的时间长度的值 完成了。

公开(公告)号：US09326285B2

公开(公告)日：2016-04-26

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 ,  H04W52/02 ,  H04W88/08 ,  H04W74/00 ,  H04W84/12 ,  H04W74/06

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：US09240874B2

公开(公告)日：2016-01-19

申请号：US14454602

申请日：2014-08-07

Applicant: LG Electronics Inc.

Inventor： Yongho Seok

IPC: H04W4/00 ,  H04L5/00 ,  H04W52/24 ,  H04W52/28 ,  H04W52/42 ,  H04W52/52 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04B7/0665 ,  H04B7/0413 ,  H04L5/0023 ,  H04L5/0053 ,  H04W52/248 ,  H04W52/281 ,  H04W52/42 ,  H04W52/52 ,  H04W72/0453 ,  H04W72/0473 ,  H04W84/12

Abstract: A method for transmitting a multiple input multiple output (MIMO) packet in a wireless local area network is described. The method includes generating a physical layer protocol data unit (PPDU) including a short training field (STF), a long training field (LTF), a very high throughput (VHT)-signal field, a VHT-STF, a VHT-LTF and a plurality of data streams. The STF is used for at least one receiver to estimate an automatic gain control and a coarse frequency offset. The LTF is used for the at least one receiver to estimate a fine frequency offset. The VHT-STF is used for improving automatic gain control estimation in a MIMO transmission. The VHT-LTF is used for estimating a MIMO channel based on the plurality of data streams. The PPDU is transmitted to the at least one receiver.

Abstract translation: 描述了一种用于在无线局域网中发送多输入多输出（MIMO）分组的方法。 该方法包括生成包括短训练场（STF），长训练场（LTF），极高吞吐量（VHT）信号场，VHT-STF，VHT-LTF的物理层协议数据单元 和多个数据流。 STF用于至少一个接收机来估计自动增益控制和粗频率偏移。 LTF用于至少一个接收机以估计精细的频率偏移。 VHT-STF用于改善MIMO传输中的自动增益控制估计。 VHT-LTF用于基于多个数据流来估计MIMO信道。 PPDU被发送到至少一个接收器。