公开(公告)号：US10743369B2

公开(公告)日：2020-08-11

申请号：US16091089

申请日：2017-04-04

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04W8/24 ,  H04W72/04 ,  H04W74/00 ,  H04B7/0452 ,  H04L5/00 ,  H04B7/06 ,  H04L27/26 ,  H04B7/0404

Abstract: The present specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. Specifically, a first station receives, from the second station, indication information which indicates a change in an operating mode indicating a receiving channel bandwidth and a number of spatial streams supported by a second station during a TXOP interval. When the number of spatial streams and the receiving channel bandwidth decrease, the first station configures a PPDU for the second station by using the indication information after transmitting an ACK for the indication information. When the number of spatial streams and the receiving channel bandwidth increase, the first station configures a PPDU for the second station by using the indication information during a subsequent TXOP interval of the TXOP interval.

公开(公告)号：US10735151B2

公开(公告)日：2020-08-04

申请号：US16374565

申请日：2019-04-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04L5/00 ,  H04W74/00 ,  H04W74/02

Abstract: According to an embodiment of the present specification, a method for transmitting an uplink frame in a wireless local area network (WLAN) system and performed by a user station (STA) includes: receiving from an access point (AP) a trigger frame comprising association identifier information for orthogonal frequency division multiple access (OFDMA)-based random access and allocation information indicating a resource unit, wherein the association identifier information indicates any one of a first value irrelevant to whether being associated with the AP, a second value for a first STA group associated with the AP, and a third value for a second STA group un-associated with the AP; and performing a countdown operation according to the association identifier information based on a backoff value which is set in a backoff counter of the user STA in order to transmit the uplink frame.

公开(公告)号：US10708964B2

公开(公告)日：2020-07-07

申请号：US15748587

申请日：2016-07-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/80 ,  H04W88/06 ,  H04W76/14 ,  H04W76/10 ,  H04L29/08 ,  H04W92/18 ,  H04W8/00 ,  H04W84/12

Abstract: The present specification may provide a method for forming, by a searcher terminal, an application service platform session with an advertiser terminal in a wireless communication system. The method for forming an application service platform session may comprise the steps of: performing discovery for the advertiser terminal and a first service; and forming an ASP session for the first service by performing connection with the advertiser terminal on the basis of a result of the performed discovery, wherein the discovery and the connection may be performed through at least one of multiple interfaces supported by application service platforms of the searcher terminal and the advertiser terminal when the searcher terminal and the advertiser terminal are first type terminals, and the discovery and the connection may be performed through a Wi-Fi direct interface when one of the searcher terminal and the advertiser terminal is the first type terminal and the other is a second type terminal.

公开(公告)号：US10595288B2

公开(公告)日：2020-03-17

申请号：US16321820

申请日：2017-05-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W56/00 ,  H04W84/12 ,  H04L27/26 ,  H04W28/26 ,  H04W72/04

Abstract: A method for transmitting a frame in a wireless LAN system according to the present embodiment comprises: a step of determining whether to transmit a first frame to an AP through an EDCA by comparing a time parameter indicating the time used for transmission of a wireless terminal with a predetermined allowable time; a step of summing up, to the time parameter, a first required time for transmission of the first frame; a step of receiving, from the AP, a trigger frame for multi-user uplink transmission; and a step of performing data processing for a second frame transmitted in response to the trigger frame, wherein a second required time for transmission of the second frame is not summed up to the time parameter.

公开(公告)号：US10575314B2

公开(公告)日：2020-02-25

申请号：US15769323

申请日：2016-10-20

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Jinyoung Chun ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

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

Abstract: According to one embodiment of the present specification, a method for transmitting a trigger frame for requesting uplink data to be received through an wireless resource individually configured in an overlapped time duration from a plurality of terminals in a wireless LAN system, comprises: a step for receiving, by an access point, a first buffer state frame from a first terminal, wherein the first buffer state frame includes first QoS information of first uplink data; a step for receiving, by the access point, a second buffer state frame from a second terminal, wherein the second buffer state frame includes second QoS information of second uplink data; a step for determining, by the access point, a first primary AC for a trigger frame on the basis of the first QoS information and the second QoS information, wherein the access point includes a plurality of AP buffers for downlink data to be transmitted to a plurality of terminals; and a step for transmitting, by the access point, the trigger frame through the downlink buffer corresponding to the determined first primary AC among the plurality of AP buffers.

公开(公告)号：US10455557B2

公开(公告)日：2019-10-22

申请号：US15424674

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04B7/0452 ,  H04L1/00 ,  H04W84/12 ,  H04B7/06 ,  H04W74/00

Abstract: A method for a WLAN system of the present invention comprises receiving, by an AP, a request frame requesting change of operating mode of a receiving STA associated with the AP from the receiving STA, wherein the request frame includes a control indicator indicating whether the receiving STA participates in UL MU MIMO transmission, and transmitting a trigger frame for a plurality of user STAs participating in the UL MU MIMO transmission based on the request frame, wherein the trigger frame includes identification information for the plurality of user STAs, resource allocation information for allocation of uplink frequency resources allocated individually for the plurality of user STAs, time information indicating a time interval during which the UL MU MIMO transmission is performed, and coding information indicating a channel coding scheme allocated for each of the plurality of user STAs.

公开(公告)号：US10383010B2

公开(公告)日：2019-08-13

申请号：US15566948

申请日：2016-04-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W4/00 ,  H04W36/00 ,  H04L29/08 ,  H04W4/80 ,  H04W48/08 ,  H04W48/16 ,  H04W8/00 ,  H04W48/14 ,  H04W76/14 ,  H04W84/12 ,  H04W84/18

Abstract: The present invention relates to a method for performing, by a first terminal, service discovery in a wireless communication system. The method for performing service discovery comprises the steps of: transmitting a handover request message to a second terminal by using near field communication (NFC); and receiving a handover selection message from the second terminal by using NFC, wherein the handover selection message may include information on a P2P connection and formation of an ASP session.

公开(公告)号：US10349455B2

公开(公告)日：2019-07-09

申请号：US15553516

申请日：2015-12-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W76/14 ,  H04W12/06 ,  H04W28/02 ,  H04W48/10 ,  H04W74/06 ,  H04W8/00 ,  H04W84/18 ,  H04W84/12

Abstract: Disclosed are a method for data communication between NAN devices, and a NAN device for performing data communication. The method for data communication between the NAN devices comprises the steps of: receiving a service discovery frame from a second NAN device by a first NAN device; transmitting a TIM element to a second NAN device by the first NAN device having received the service discovery frame and being triggered by a user action, wherein the TIM element includes information related to data buffered with respect to the second NAN device; performing, by the first NAN device, an authentication procedure and an association procedure with the second NAN device on the basis of a request of the second NAN device having received the TIM element; transmitting a falling frame from the second NAN device by the first NAN device; and transmitting, by the first NAN device, the data buffered with respect to the second NAN device, to the second NAN device in response to the falling frame.

公开(公告)号：US10251199B2

公开(公告)日：2019-04-02

申请号：US15470667

申请日：2017-03-27

Applicant: LG ELECTRONICS INC.

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

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

Abstract: According to an embodiment of the present specification, a method of transmitting a frame in a wireless local area network (WLAN) includes: receiving, by a user station (STA), a multi user-request to send (MU-RTS) frame from an access point (AP) to protect transmission for multi-users, wherein the MU-RTS frame includes common information commonly allocated to the multi-users, user-specific information individually allocated to the multi-users, and a control indicator indicating a first operation mode using a first channel and a second channel contiguous to the first channel and a second operation mode using the first channel and a third channel non-contiguous to the first channel; and transmitting, by the user STA, a clear to send (CTS) frame to the AP according to the control indicator in response to the MU-RTS frame.

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.