公开(公告)号：US09781722B2

公开(公告)日：2017-10-03

申请号：US15400171

申请日：2017-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Yongho Seok

IPC: H04W4/00 ,  H04W72/04 ,  H04W40/24 ,  H04W52/02 ,  H04W84/12

CPC classification number: H04W74/04 ,  H04W4/08 ,  H04W40/244 ,  H04W52/0216 ,  H04W72/005 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/006 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1222 ,  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 specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. The method for accessing a channel from a station (STA) in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: receiving from an access point (AP) a first frame including a traffic indication map (TIM) and a restricted access window (RAW) parameter set component; determining a RAW in which channel access of the STA is permitted, on the basis of the RAW parameter set (RPS) component; and transmitting a second frame to the AP from within the RAW that is determined, wherein the RAW includes at least one slot, the RPS component includes at least one RAW allocation field, each of the at least one RAW allocation field includes a RAW duration field and a slot duration field, and wherein an index of a slot which is allocated to the STA can be determined on the basis of an association identifier (AID) of the STA and the number of the slots in the RAW.

公开(公告)号：US09781670B2

公开(公告)日：2017-10-03

申请号：US14912833

申请日：2014-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Yongho Seok

IPC: G08C17/00 ,  H04W52/02 ,  H04W28/02 ,  H04L1/16 ,  H04W84/12

CPC classification number: H04W52/0216 ,  H04L1/1628 ,  H04L1/1685 ,  H04W28/0221 ,  H04W52/0225 ,  H04W52/0238 ,  H04W84/12 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to a wireless communication system, and, more particularly, a method and device for implementing power saving in a wireless LAN system are disclosed. A method of implementing power saving by a station (STA) in a wireless LAN system according to an embodiment of the present invention may include the steps of: receiving a plurality of frames from an access point (AP) by means of the station STA that is changed from a sleep state to an awake state; determining whether each of the plurality of frames has an error; and transmitting a response frame representing the presence and absence of the error to the AP. Even if each of the plurality of frames includes information instructing the AP to stop transmitting to the station to the station STA, it is possible to maintain the awake state when at least one of the plurality of frames has an error.

公开(公告)号：US09730159B2

公开(公告)日：2017-08-08

申请号：US14389955

申请日：2013-04-02

Applicant: LG Electronics Inc.

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

IPC: H04W52/02 ,  H04W74/04 ,  H04W72/04 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10 ,  H04W74/00

CPC classification number: H04W52/0216 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/04 ,  H04W84/12 ,  H04W88/06 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for accessing the channel from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises receiving from an access point (AP) setting information of a time window, which does not allow channel access of the STA in a traffic indication map (TIM) mode and which is repeatedly set in a cyclic manner; and carrying out the channel access on the basis of the time window, wherein the setting information includes starting point information of a specific time window and cycle information of the time window, wherein the time window is repeatedly set for every cycle that is indicated by the cycle information of the time window.

公开(公告)号：US09723611B2

公开(公告)日：2017-08-01

申请号：US14890727

申请日：2013-11-11

Applicant: LG Electronics Inc.

Inventor： Yongho Seok

IPC: H04W16/10 ,  H04W88/08 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0446 ,  H04W16/10 ,  H04W72/046 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system and more specifically, to a method for supporting a basic service set (BSS) in a wireless LAN system and an apparatus therefor. According to one embodiment of the present invention, a method for supporting a BSS by an access point (AP) in a wireless LAN system can comprise the steps of: scanning an overlapping BSS (OBSS); and selecting a primary channel for a new BSS of the AP from channels for which a beacon is not detected during the OBSS scanning. The primary channel can be selected from all channels except the secondary channel of the OBSS. In addition, if the new BSS supports an operating channel having a 4 MHz, 8 MHz or 16 MHz channel bandwidth, a primary channel having a 2 MHz channel bandwidth can be chosen for the new BSS.

公开(公告)号：US09706529B2

公开(公告)日：2017-07-11

申请号：US14765120

申请日：2014-02-05

Applicant: LG ELECTRONICS INC.

Inventor： Yongho Seok

IPC: H04W72/04 ,  H04W74/00 ,  H04L5/00 ,  H04W74/08 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/0406 ,  H04L5/00 ,  H04L5/001 ,  H04W74/002 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08

Abstract: A communication method for an AP comprises the step of: the AP receiving multiple RTS frames from each of multiple STAs through each of multiple channels; the AP transmitting multiple CTS frames to the multiple STAs through each of multiple available channels from among the multiple channels; and the AP receiving multiple uplink data frames transmitted from each of the multiple STAs through each of the multiple available channels, wherein the AP communicates with the multiple STAs based on BSS1 and BSS2, wherein the BSS1 includes a primary channel band1 and secondary channel band1, the BSS2 includes a primary channel band2 and secondary channel band2, wherein the primary channel band1 overlaps with the secondary channel band2, the secondary channel band1 overlaps with the primary channel band2, and wherein the multiple channels can be included in the primary channel band1 and secondary channel band1.

公开(公告)号：US09648613B2

公开(公告)日：2017-05-09

申请号：US14428109

申请日：2013-09-26

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo Choi ,  Jeongki Kim ,  Giwon Park ,  Yongho Seok

IPC: H04W72/04 ,  H04W74/08 ,  H04W4/00 ,  H04W76/06 ,  H04W84/12 ,  H04W28/18 ,  H04W88/08

CPC classification number: H04W72/0446 ,  H04L29/08333 ,  H04L29/08396 ,  H04W4/70 ,  H04W12/06 ,  H04W12/08 ,  H04W28/18 ,  H04W74/0808 ,  H04W74/0816 ,  H04W74/0833 ,  H04W76/19 ,  H04W76/38 ,  H04W84/12 ,  H04W84/18 ,  H04W88/08

Abstract: A method for gaining access according to one embodiment of the present invention in which a station (STA) gains access to a medium in wireless communication system comprises the steps of: sensing a carrier wave for a medium so as to transmit a set frame; and, if the medium is busy, executing a random back-off procedure, wherein the starting point of the random back-off procedure is indicated by a second parameter randomly selected from within a range in accordance with a first parameter.

公开(公告)号：US09538552B2

公开(公告)日：2017-01-03

申请号：US14389581

申请日：2013-04-01

Applicant: LG Electronics Inc.

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

IPC: H04W74/00 ,  H04W56/00 ,  H04W52/02 ,  H04W84/12 ,  H04W76/04

CPC classification number: H04W74/002 ,  H04W52/0216 ,  H04W52/0241 ,  H04W56/001 ,  H04W76/28 ,  H04W84/12 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/124 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

Abstract: The present invention relates to a wireless communication system, and more specifically discloses a method and an apparatus for transceiving a beacon in a wireless LAN system. A method for receiving a beacon from a station (STA) in a wireless communication system according to one embodiment of the present invention comprises the steps of: receiving a probe response frame from an access point (AP); determining the time at which the next beacon is to be received by means of information regarding the next beacon contained in the probe response frame; and receiving the next beacon at the time determined for receiving the next beacon.

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，公开了一种在无线LAN系统中收发信标的方法和装置。 根据本发明的一个实施例的在无线通信系统中从站（STA）接收信标的方法包括以下步骤：从接入点（AP）接收探测响应帧; 通过关于包含在探测响应帧中的下一个信标的信息来确定下一个信标的接收时间; 并在为接收下一个信标确定的时间接收下一个信标。

公开(公告)号：US09526015B2

公开(公告)日：2016-12-20

申请号：US14390718

申请日：2013-04-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/02 ,  H04W52/02 ,  H04W74/00 ,  H04W84/12

CPC classification number: H04W24/02 ,  H04W52/0216 ,  H04W74/00 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22

Abstract: Disclosed are a method for transmitting and receiving a traffic indication map (TIM) in a wireless communication system and a device for supporting the same. More particularly, the method for transmitting a traffic indication map comprises the step of transmitting a TIM to a STA through a beacon frame, wherein the TIM includes: a block bitmap field for indicating a subblock including a STA in which buffered downlink data exists for respective N (N are two or more natural numbers) blocks; and a block control field for indicating an encoding method for the bitmap field.

Abstract translation: 公开了一种用于在无线通信系统中发送和接收交通指示图（TIM）的方法以及用于支持它的设备。 更具体地，用于发送业务指示映射的方法包括通过信标帧向STA发送TIM的步骤，其中，所述TIM包括：块位图字段，用于指示包括STA的子块，其中存在用于相应的缓冲的下行链路数据 N（N是两个或多个自然数）块; 以及用于指示位图字段的编码方法的块控制字段。

公开(公告)号：US09526011B2

公开(公告)日：2016-12-20

申请号：US13965338

申请日：2013-08-13

Applicant: LG Electronics Inc.

Inventor： Wookbong Lee ,  Jeongki Kim ,  Jinsam Kwak ,  Giwon Park ,  Yongho Seok ,  Jinyoung Chun ,  Jinsoo Choi

IPC: H04W16/14

CPC classification number: H04W16/14

Abstract: A wireless communication system is disclosed. Specifically, a channelization method in a whitespace band and an apparatus for the same are disclosed. A method for providing whitespace operation information includes transmitting, by a first station (STA) to a second STA, a frame including a TV whitespace high throughput (TVHT) operation information field. The TVHT operation information field includes primary channel number, channel width, channel center frequency segment 0 and channel center frequency segment 1 subfields. A channel center frequency of frequency segment 0 or frequency segment 1 is determined based on a channel start frequency. The channel start frequency is determined as a function of a TV channel index corresponding to the frequency segment 0 or a TV channel index corresponding to the frequency segment 1.

Abstract translation: 公开了一种无线通信系统。 具体地，公开了空白频带中的信道化方法及其装置。 一种用于提供空白操作信息的方法包括由第一站（STA）向第二STA发送包括TV空白高吞吐量（TVHT）操作信息字段的帧。 TVHT操作信息字段包括主信道号，信道宽度，信道中心频段0和信道中心频段1子字段。 基于频道起始频率来确定频段0或频段1的频道中心频率。 通道开始频率根据对应于频段0的TV频道索引或对应于频段1的TV频道索引确定。

公开(公告)号：US09516674B2

公开(公告)日：2016-12-06

申请号：US14100911

申请日：2013-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Yongho Seok

IPC: H04L5/04 ,  H04W74/00 ,  H04W4/00 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04W74/006 ,  H04W4/70 ,  H04W74/0808 ,  H04W84/12

Abstract: The present invention relates to a wireless communication system, and more specifically, to a backoff method and apparatus in slotted channel access in a Wireless Local Area Network (WLAN) system are disclosed. A method for performing channel access by a station (STA) in a WLAN system includes: receiving restricted access window (RAW) configuration information for the STA from an access point (AP); performing a backoff procedure using a second backoff function state for channel access within the RAW; and performing a backoff procedure using a first backoff function state at an end of the RAW. The STA maintains a plurality of backoff function states including the first backoff function state used outside the RAW and the second backoff function state used within the RAW.

Abstract translation: 本发明涉及一种无线通信系统，更具体地说，涉及一种在无线局域网（WLAN）系统中的时隙信道接入中的退避方法和装置。 一种用于在WLAN系统中由站（STA）执行信道访问的方法包括：从接入点（AP）接收STA的受限访问窗口（RAW）配置信息; 使用第二退避功能状态对RAW内的频道访问执行退避过程; 并且在RAW结束时使用第一退避功能状态执行退避过程。 STA维持多个退避功能状态，包括在RAW之外使用的第一退避功能状态和在RAW内使用的第二退避功能状态。