公开(公告)号：US10485028B2

公开(公告)日：2019-11-19

申请号：US15537355

申请日：2016-10-04

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Jinsoo Choi ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W74/08 ,  H04W16/02 ,  H04W52/02 ,  H04W84/12 ,  H04L29/08 ,  H04W74/00

Abstract: A method by which an access point (AP) supports multi-basic service sets (BSSs) in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: setting a plurality of BSS identifiers for each individual BSS belonging to the multi-BSSs; and transmitting a frame for notifying a station (STA) of the plurality of BSS identifiers set for each individual BSS, wherein the plurality of BSS identifiers include a first BSS identifier and a second BSS identifier, which has a length shorter than that of the first BSS identifier, and the first BSS identifier is set to different values for each individual BSS, but the second BSS identifier can be set to the same value for all of the multi-BSSs.

公开(公告)号：US10455556B2

公开(公告)日：2019-10-22

申请号：US15424629

申请日：2017-02-03

Applicant: LG ELECTRONICS INC.

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

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

Abstract: This specification proposes a signal processing method for changing an operating mode for transmitting a PPDU in a wireless LAN system. More specifically, a first station transmits request information requesting for a change in the operating mode to a second station. The first station transmits a first PPDU supporting a first wireless LAN system to the second station based on the request information. The first station receives a Block ACK (BA) as a response to the first PPDU. The request information includes delay time information indication a time during which indication information is applied.

公开(公告)号：US10440649B2

公开(公告)日：2019-10-08

申请号：US15785247

申请日：2017-10-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Jinsoo Choi

IPC: H04W52/02 ,  H04W84/12 ,  H04W40/24 ,  H04W72/04 ,  H04L12/26

Abstract: Disclosed herein is a method for performing power management in a wireless LAN system and a wireless device using the same, wherein the method may include the steps of receiving, by a first wireless device, a beacon frame including a first time wake time (TWT) flow identifier (TWT FID) indicating a type of first recommendation frame authorized to be transmitted during a first TWT service period and a second TWT flow identifier (TWT FID) indicating a type of second recommendation frame authorized to be transmitted during a second TWT service period, from a second wireless device, after receiving the beacon frame, shifting, by the first wireless device, from an awake state to a doze state, and receiving, by the first wireless device, a change frame for changing the second TWT flow identifier during the first TWT service period from the second wireless device.

公开(公告)号：US10432354B2

公开(公告)日：2019-10-01

申请号：US15532049

申请日：2015-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook Kim ,  Kiseon Ryu ,  Jinyoung Chun ,  Wookbong Lee ,  Jeongki Kim ,  Hangyu Cho

IPC: H04L1/00 ,  H04L1/16 ,  H04L5/00 ,  H04W72/04 ,  H04L21/00 ,  H04W84/12 ,  H04L1/12

Abstract: Disclosed are a method and a device for recovering an error without the retransmission of a data frame in a wireless LAN. The method for recovering an error in a wireless LAN may comprise the steps in which: a sender STA transmits a data frame to a receiver STA; if the sender STA does not receive a block ACK frame of the data frame from the receiver STA, the sender STA determines the reason for the non-reception of the data frame; if the sender STA determines that the reason for the non-reception of the data frame is the failure of transmission of the block ACK frame after the receiver STA receives the data frame, the sender STA transmits a PBAR data frame to the receiver STA; and the sender STA receives a PBAR block ACK frame from the receiver STA as a response to the PBAR data frame.

公开(公告)号：US10420120B2

公开(公告)日：2019-09-17

申请号：US15671678

申请日：2017-08-08

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/10 ,  H04W72/04 ,  H04W74/06 ,  H04L5/00 ,  H04W84/12 ,  H04L29/12 ,  H04W72/08

Abstract: A method for transmitting an uplink frame in a wireless local area network (WLAN) system. The method includes receiving, by a first wireless device, a basic trigger frame for an uplink multi-user (UL MU) transmission from a second wireless device, in which the basic trigger frame includes preference information related to an Access Category (AC) type for an aggregation frame that is to be generated by the first wireless device and limit information related to a maximum number of traffic identifiers allowed for the aggregation frame; generating, by the first wireless device, the aggregation frame with a plurality of Quality of Service (QoS) data frames of the first wireless device based on the preference information and the limit information; generating, by the first wireless device, the uplink frame based on the aggregation frame and a QoS null frame set to a no acknowledgement (ACK) policy regardless of the preference information and the limit information, in which the QoS null frame is not required to be acknowledged by the second wireless device based on the no ACK policy; and transmitting, by the first wireless device, the uplink frame to the second wireless device in response to the basic trigger frame.

公开(公告)号：US10412677B2

公开(公告)日：2019-09-10

申请号：US15564015

申请日：2016-04-11

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Suhwook Kim

IPC: H04W52/02 ,  H04W48/02 ,  H04W74/08 ,  H04W74/00 ,  H04W84/12 ,  H04W4/70 ,  H04L5/00

Abstract: According to one embodiment of the present invention, a method by which an access point (AP) transmits and receives a frame in a wireless communication system comprises the steps of: receiving, from STA, an uplink signal including predetermined information; determining whether to transmit, to the STA, information related to the stopping an EDCA, on the basis of the predetermined information and/or the uplink signal; and transmitting, to the STA, the information related to the stopping of an EDCA when the information related to the stopping of an EDCA is determined to be transmitted to the STA.

公开(公告)号：US20190229862A1

公开(公告)日：2019-07-25

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: H04L5/00 ,  H04W74/00

CPC classification number: H04L5/0007 ,  H04L5/0053 ,  H04W74/002 ,  H04W74/02 ,  H04W84/12

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：US10341075B2

公开(公告)日：2019-07-02

申请号：US15536313

申请日：2015-12-23

Applicant: LG Electronics Inc.

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

IPC: H04L5/00 ,  H04L1/16 ,  H04L1/00

Abstract: The present document relates to a method for transmitting an acknowledgement/negative acknowledgement (ACK/NACK) signal for transmission data of a plurality of stations (STAs) by an access point (AP) in a wireless LAN (WLAN) system, and an apparatus therefor. To this end, the AP transmits a trigger frame to the plurality of STAs, and on receiving data from the plurality of STAs in response to the trigger frame, transmits ACK/NACK signals for the data received from the plurality of STAs through a multiuser block ACK frame (M-BA frame). Here, the M-BA frame includes ACK/NACK signals for STAs, the number of which is determined so as not to exceed a specific transmission unit time, among the ACK/NACK signals for the plurality of STAs, and the AP additionally transmits ACK/NACK signals to one or more STAs, to which ACK/NACK signals have not been transmitted through the M-BA, among the plurality of STAs.

公开(公告)号：US10327250B2

公开(公告)日：2019-06-18

申请号：US15514781

申请日：2015-09-25

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12

Abstract: The present document relates to a wireless communication system and, more specifically, to a method for flexibly supporting resource allocation in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, a first STA configures a radio frame comprising: a signaling (SIG) field including control information; and a data field in which data can be transmitted via a discontinuous channel or a channel having a bandwidth size that is supported by a legacy system. When the first STA transmits the configured radio frame to a second STA, the SIG field preferably comprises: information about a full bandwidth in which data can be transmitted via the data field; and null indicator information indicating a channel region of the full bandwidth that is not used in data transmission, or used channel indicator information indicating a channel region of the full bandwidth that is used in data transmission.

公开(公告)号：US10292155B2

公开(公告)日：2019-05-14

申请号：US15021654

申请日：2014-09-15

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A method and a device for receiving a multicast frame in a wireless LAN are disclosed. The method for receiving a multicast frame in a wireless LAN comprises the steps of: combining, by an STA, an AP on the basis of an initial access frame transmitted by the AP through a primary channel; setting, by the STA, an operating channel as an exclusive multicast channel on a first time resource, wherein the first time resource and the primary channel are indicated on the basis of the initial access frame; receiving, by the STA, the multicast frame from the AP through the exclusive multicast channel on the first time resource; setting, by the STA, the operating channel as the primary channel on a second time resource; and receiving, by the STA, a unicast frame from the AP through the primary channel on the second time resource.