公开(公告)号：US10201012B2

公开(公告)日：2019-02-05

申请号：US15302470

申请日：2015-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinsoo Choi ,  Giwon Park ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W74/08 ,  H04W76/38 ,  H04W28/04 ,  H04W84/12 ,  H04B7/0452 ,  H04L5/00 ,  H04W72/04

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for performing retransmission in a wireless LAN system to which transmission opportunity (TXOP) sharing is applied, and a device therefor. To this end, a station transmits an initial transmission frame including primary access category (AC) information and secondary access category (AC) information; and when there is no response to the secondary AC information of the initial transmission frame, reconfigures a back-off timer value for the secondary AC information and retransmits the secondary AC information according to the reconfigured back-off timer value.

公开(公告)号：US10178691B2

公开(公告)日：2019-01-08

申请号：US15326994

申请日：2015-03-10

Applicant: LG ELECTRONICS INC.

Inventor： Kitae Kim ,  Eunjong Lee ,  Giwon Park ,  Jaehoon Chung ,  Jiwon Kang ,  Hyeyoung Choi

IPC: H04W72/12 ,  H04W28/02 ,  H04W72/04

Abstract: Disclosed herein are a method and apparatus for requesting scheduling in a wireless communication system. More specifically, a method of requesting scheduling for transmitting uplink data in a wireless communication system may include transmitting, by user equipment (UE), a Scheduling Request (SR) of an SR type selected from multiple SR types to an eNB, receiving, by the UE, an uplink grant determined according to the selected SR type from the eNB, and transmitting, by the UE, uplink data to the eNB through a physical uplink shared channel (PUSCH) resource allocated by the uplink grant.

公开(公告)号：US10117270B2

公开(公告)日：2018-10-30

申请号：US15303194

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Giwon Park ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W74/08 ,  H04W84/12 ,  H04B17/318 ,  H04W24/02 ,  H04L29/08

Abstract: The present document relates to a method for determining whether a corresponding medium (for example, a channel) is reusable so as to improve a space reuse rate in a wireless communication system, particularly, a wireless LAN system, and an apparatus for the same. To this end, a station receives a wireless LAN signal through a specific wireless medium, compares the received signal intensity of the wireless LAN signal with a CCA level selected from between a first CCA level and a second CCA level lower than the first CCA level according to the type of the received wireless LAN signal, determines that the corresponding wireless medium is usable if the received signal intensity is lower than the selected CCA level, and can use the wireless medium in a signal transmission.

公开(公告)号：US10034047B2

公开(公告)日：2018-07-24

申请号：US15534914

申请日：2015-12-09

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Hyunhee Park ,  Taesung Lim

IPC: H04N7/15 ,  H04N21/4402 ,  H04W8/00 ,  H04W84/12 ,  H04N21/6437

Abstract: A method and apparatus for outputting a supplementary content from a WFD is disclosed. The method for outputting a supplementary content from a WFD may comprise the steps of: after a WFD source is connected to a WFD, transmitting, by the WFD source, an RTSP parameter request message on the basis of an RTSP to a WFD sink in order to perform a capability negotiation procedure with the WFD sink; transmitting, by the WFD source, an RTSP parameter response message to the WFD sink in response to the RTSP parameter request message; and after performing the capability negotiation procedure, transmitting, by the WFD source, a transmission stream, obtained by overlapping and multiplexing a video stream including video data having a first resolution and a supplementary stream including supplementary data having a second resolution, to the WFD sink, wherein a WFD discovery response frame includes second resolution-related information for determining the second resolution, and an RTSP parameter response frame includes the second resolution-related information.

公开(公告)号：US10009930B2

公开(公告)日：2018-06-26

申请号：US15319492

申请日：2015-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jeongki Kim ,  Giwon Park ,  Hangyu Cho

IPC: H04W74/08 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04W74/0833 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/06 ,  H04W74/0808 ,  H04W84/12

Abstract: Disclosed are a method and apparatus for transmitting a frame. A method for transmitting a frame in a wireless LAN comprises the steps of: an STA receiving an uplink transmission trigger frame from an access point (AP), wherein the uplink transmission trigger frame triggers the transmission of an uplink frame of an STA on an overlapping time resource, and triggers the transmission of one other uplink frame of at least one other STA; the STA transmitting the uplink frame to the access point (AP) through an allocated uplink transmission resource; and the STA performing a backoff process based on channel access parameters, which have been determined according to the success of the uplink frame transmission.

公开(公告)号：US09974022B2

公开(公告)日：2018-05-15

申请号：US15309415

申请日：2015-04-03

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0225 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and apparatus for power saving mode-based operation in a wireless LAN. A method for power saving mode-based operation in a wireless LAN can comprise the steps of: an STA performing an initial configuration procedure for configuring a TIM-based power saving mode and an AP; the STA being converted from a doze state to an awake state, on the basis of a transmission period of a beacon frame, by operating in the TIM-based power saving mode on the basis of the initial configuration procedure, and thereby receiving a first downlink frame from the AP; the STA receiving from the AP operation mode configuration information indicating conversion from the TIM-based power saving mode to an active mode; and the STA receiving, on the basis of the active mode, a second downlink frame from the AP.

公开(公告)号：US09949252B2

公开(公告)日：2018-04-17

申请号：US15102263

申请日：2014-12-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Giwon Park ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W4/00 ,  H04W72/04 ,  H04W72/12 ,  H04W74/00

CPC classification number: H04W72/042 ,  H04W72/12 ,  H04W74/006 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more particularly, to a method for establishing a wireless channel by an AP in a high-density wireless LAN system and to an apparatus therefor. The AP configured for this purpose can establish a primary channel and one or more secondary channels, establish one or more downlink oriented channels into one or more secondary channels, but without the one or more downlink oriented channels overlapping the primary channel of an adjacent basic service set (BSS), and transmit, to a station connected to the AP, the frame including establishment information on the established one or more downlink oriented channels.

公开(公告)号：US20180098211A1

公开(公告)日：2018-04-05

申请号：US15567027

申请日：2016-04-25

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Byungjoo Lee ,  Dongcheol Kim ,  Giwon Park ,  Taesung Lim ,  Youngjun Jo

IPC: H04W8/06 ,  H04W8/08 ,  H04W60/06 ,  H04W84/18

CPC classification number: H04W8/06 ,  H04W8/08 ,  H04W60/00 ,  H04W60/06 ,  H04W84/18 ,  Y02D70/122 ,  Y02D70/126

Abstract: The present specification relates to a method for a NAN proxy client to perform registration to a NAN proxy server in a wireless communication system. The method for a NAN proxy client to perform registration to a NAN proxy server may comprising: transmitting a subscribe message regarding proxy service search to the NAN proxy server; receiving a publish message from the NAN proxy server; transmitting a proxy registration request message to the NAN proxy server on the basis of proxy service; and receiving a proxy registration response message on the basis of the proxy registration request message.

公开(公告)号：US09918278B2

公开(公告)日：2018-03-13

申请号：US15108768

申请日：2015-01-12

Applicant: LG ELECTRONICS INC.

Inventor： Giwon Park ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W52/02 ,  H04W84/12

CPC classification number: H04W52/0235 ,  H04W52/0216 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: Disclosed are a method and an apparatus for operating based on a power save mode in a wireless LAN. The method for operating based on the power save mode in a wireless LAN may comprise the steps of: an STA receiving, from an AP, a beacon frame from a beacon frame time resource for the beacon frame, wherein a TIM included in the beacon frame indicates pending downlink data for the STA; the STA maintaining a sleep mode after receiving the beacon frame and until a monitoring start time resource for the downlink frame for delivering downlink data; and the STA receiving, from the AP, the downlink frame from a listen window including the monitoring start time resource.

公开(公告)号：US09883535B2

公开(公告)日：2018-01-30

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 ,  H04W84/12

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.