公开(公告)号：US10172170B2

公开(公告)日：2019-01-01

申请号：US14378742

申请日：2013-03-26

申请人： LG ELECTRONICS INC.

发明人： Jeongki Kim ,  Yongho Seok ,  Seunghee Han ,  Jinsoo Choi ,  Jinsam Kwak ,  Hangyu Cho

IPC分类号： H04W76/11 ,  H04W76/14 ,  H04W74/00 ,  H04W76/23 ,  H04W84/12 ,  H04W88/08

摘要： The present invention discloses a method for changing an association ID in a wireless communication system and an apparatus therefor. Specifically, a method for changing an association identification (AID) of a first station (STA) communicating directly with a second STA in a wireless communication system comprises the steps of: receiving, from an access point (AP), a reassignment response frame containing new AID information to be newly allocated to the first STA; the first STA transmitting an update request frame containing the new AID information to the second STA; and as a response to the update request frame, receiving an update response frame from the second STA.

公开(公告)号：US10051640B2

公开(公告)日：2018-08-14

申请号：US15024765

申请日：2014-06-19

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04W84/12 ,  H04W72/08 ,  H04B7/024 ,  H04B7/06 ,  H04W16/28 ,  H04W72/04 ,  H04L1/00 ,  H04W88/08

摘要： A method and a device for preventing interference in an overlapping service area are disclosed. The method for preventing interference in an overlapping service area of a wireless LAN can comprise the steps of: receiving, by an interference AP, a beacon frame broadcasted by an AP, wherein the beacon frame includes an interference prevention information element; receiving, by the interference AP, a sounding PPDU indicated on the basis of the interference prevention information element from the AP; determining, by the interference AP, a transmission control matrix on the basis of the sounding PPDU; and transmitting, by the interference AP, data through a beam generated on the basis of the transmission control matrix.

公开(公告)号：US10028272B2

公开(公告)日：2018-07-17

申请号：US14769082

申请日：2013-10-13

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04W72/04 ,  H04W74/08 ,  H04W52/02 ,  H04W40/24 ,  H04W74/06 ,  H04W76/38 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08

摘要： The present invention relates to a wireless communication system, and more particularly to a method for exchanging a frame for a low power device and an apparatus therefor in a wireless LAN system. A method for enabling an access point (AP) to exchange a frame with a station (STA) in a wireless LAN system according to an embodiment of the present invention includes the steps of receiving the information of the maximum awake time from the STA. When the frame exchange is expected to be accomplished within the maximum awake time, the frame exchange can be performed. When the frame exchange is expected to exceed the maximum awake time, the frame exchange is stopped, and a new back-off procedure can be invoked.

公开(公告)号：US10027512B2

公开(公告)日：2018-07-17

申请号：US15110090

申请日：2014-06-19

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04L25/02 ,  H04L27/26 ,  H04B7/06 ,  H04L27/36 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08

摘要： Disclosed are a method and an apparatus for sounding in a wireless communication system. A method for sounding in a wireless local area network (WLAN) may comprise: a step of receiving, by an STA, an NDPA frame from an AP; a step of receiving, by the STA, an NDP frame on the basis of identification information included in the NDPA frame; and a step of transmitting, by the STA, channel state information determined on the basis of the NDP frame to the AP, wherein the NDPA frame may be demodulated on the basis of a first FFT and the NDP frame may be demodulated on the basis of a second FFT.

公开(公告)号：US09936370B2

公开(公告)日：2018-04-03

申请号：US14654120

申请日：2013-11-08

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04W8/00 ,  H04W84/12 ,  H04W48/16

CPC分类号： H04W8/005 ,  H04W48/16 ,  H04W84/12

摘要： The present invention relates to a wireless communication system and, more particularly, to an improved scanning method and apparatus in a wireless LAN system. A method by which an access point (AP) supports the scanning of a station (STA) in a wireless LAN system, according to one embodiment of the present invention, includes the steps of: receiving, by the AP which supports first and second channel widths, a probe request frame in the first channel width or second channel width from the STA; and transmitting a probe response frame, which responds to the probe request frame, to the STA. When the probe request frame is received in the first channel width, the probe response frame can be transmitted in said first channel width. When the probe request frame is received in the second channel width, the probe response frame can be transmitted in said second channel width.

公开(公告)号：US09900865B2

公开(公告)日：2018-02-20

申请号：US14037022

申请日：2013-09-25

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04W72/02 ,  H04L5/00 ,  H04W74/00

CPC分类号： H04W72/02 ,  H04L5/003 ,  H04L5/0094 ,  H04L5/0096 ,  H04W74/006

摘要： Sub-channel selective access by a station (STA) in a wireless LAN (WLAN) system may involve receiving a frame including a channel list information field and a sounding indicator field, the latter indicating whether the frame is for sounding scheduling or for access point activity scheduling. If the sounding indicator field has a first value, the channel list information field indicates one or more sub-channels where there is a sounding transmission activity for the sub-channel selective access. If the sounding indicator field has a second value, the channel list information field indicates at least one sub-channel where a data transmission is permitted for the sub-channel selective access.

公开(公告)号：US09887821B2

公开(公告)日：2018-02-06

申请号：US14394397

申请日：2013-04-15

申请人： LG Electronics Inc.

发明人： Yongho Seok

IPC分类号： H04L5/00 ,  H04L1/16 ,  H04W52/02 ,  H04W84/12

CPC分类号： H04L5/0055 ,  H04L1/1685 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W84/12 ,  Y02B70/32 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/22

摘要： The present invention relates to a wireless communication system and, in particular, to a method and apparatus for transmitting/receiving a feedback trigger frame in a wireless LAN system. The method for transmitting a feedback trigger frame by means of a request station (STA) in a wireless communication system according to one embodiment of the present invention includes the steps of: transmitting the feedback trigger frame including an acknowledgement (ACK) indication field to a response STA; and receiving a feedback frame from the response STA, wherein the ACK indication field can be set as a value indicating a first type associated with ACK, a second type associated with block ACK (BA), a third type associated with no ACK, or a fourth type associated with an ACK other than those of the first, second, and third types.

公开(公告)号：US09826336B2

公开(公告)日：2017-11-21

申请号：US15111165

申请日：2014-07-04

申请人： LG ELECTRONICS INC.

发明人： Yongho Seok

IPC分类号： H04W4/00 ,  H04L1/16 ,  H04L1/18 ,  H04L29/06 ,  H04W84/12

CPC分类号： H04W4/005 ,  H04L1/16 ,  H04L1/1829 ,  H04L63/0428 ,  H04L69/22 ,  H04W4/70 ,  H04W84/12

摘要： The present invention relates to a wireless communication system and, more particularly, to a method and an apparatus for transmitting and receiving a frame supporting a short MAC header in a wireless LAN system. A method for receiving a frame by a station (STA) in a wireless communication system in accordance with one embodiment of the present invention may comprise the steps of: receiving the frame including a sequence control (SC) field; determining a packet number (PN) using the value of the SC field and a partial PN value stored in the STA; and performing decryption for the frame using the PN. When the decryption is performed after reordering a block ACK for the frame, an operation can be performed to increase the partial PN value stored in the STA by 1 if the sequence number value of the SC field of the received frame is less than the previous sequence number value.

公开(公告)号：US09807682B2

公开(公告)日：2017-10-31

申请号：US14906821

申请日：2014-08-01

申请人： LG ELECTRONICS INC.

发明人： Jeongki Kim ,  Suhwook Kim ,  Yongho Seok ,  Hangyu Cho ,  Kiseon Ryu ,  Giwon Park

IPC分类号： H04J11/00 ,  H04W48/16 ,  H04W52/02 ,  H04L27/26 ,  H04W84/12

CPC分类号： H04W48/16 ,  H04L27/2602 ,  H04W52/02 ,  H04W84/12

摘要： Method and device for receiving a data unit are disclosed. A method for receiving a PPDU including a PPDU header and a data field of an STA may comprise the step of: an STA receiving the PPDU header from an AP; the STA determining whether the PPDU transfers a scanning frame on the basis of the PPDU header; and the STA determining whether to decode the data field on the basis of whether to perform a scanning procedure and whether the PPDU transfers the scanning frame.

公开(公告)号：US09794932B2

公开(公告)日：2017-10-17

申请号：US14426098

申请日：2013-10-29

申请人： LG ELECTRONICS INC.

发明人： Jinsoo Choi ,  Hangyu Cho ,  Yongho Seok ,  Jeongki Kim

IPC分类号： H04W72/04 ,  H04W72/12 ,  H04L1/16 ,  H04L12/46 ,  H04W28/02 ,  H04W74/00 ,  H04W84/12 ,  H04W88/08

CPC分类号： H04W72/0446 ,  H04L1/1614 ,  H04L12/4641 ,  H04W28/0215 ,  H04W72/1263 ,  H04W74/002 ,  H04W84/12 ,  H04W88/08

摘要： The present invention relates to a wireless communication system and, more specifically, to a method and a device for transmitting and receiving a traffic indication map (TIM) in a wireless LAN system. The method by which a station (STA) receives a TIM element in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: receiving a frame that includes the TIM element from an access point (AP); and decoding a partial virtual bitmap included in the TIM element, wherein one block of the partial virtual bitmap includes one or more association identifier difference value (ΔAID) fields, and a field subsequent to the one or more ΔAID fields can indicate an end of the one block.