公开(公告)号：US11057253B2

公开(公告)日：2021-07-06

申请号：US15540517

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Wookbong Lee ,  Jeongki Kim ,  Hangyu Cho ,  Jinmin Kim

IPC: H04L27/26 ,  H04L5/00 ,  H04W48/12 ,  H04W72/04 ,  H04B7/0452 ,  H04W84/12

Abstract: A method and apparatus for transmitting frames having a signaling field (SIG) for a second type of station (STA) in a wireless communication system are provided. For this, STA prepares a frame having a first part for a first type of STA and a second part for the second type of STA. Here, the second part includes a first signaling field (HE-SIG A) for common control information and a second signaling field (HE-SIG B) for signaling information comprising user specific control information. Regarding the second signaling field, independent signaling information for the second signaling field (HE-SIG B) is to be transmitted for each 20 MHz bandwidth within a first 40 MHz bandwidth. And the signaling information of the first 40 MHz bandwidth is duplicated in a second 40 MHz bandwidth, when the frame is to be transmitted in a bandwidth equals to or greater than 80 MHz. STA transmits this prepared frame to one or more STAs.

公开(公告)号：US10924165B2

公开(公告)日：2021-02-16

申请号：US16596457

申请日：2019-10-08

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinyoung Chun ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho

IPC: H04L25/02 ,  H04L5/00 ,  H04J13/00 ,  H04L27/26 ,  H04W72/04 ,  H04W84/12 ,  H04B7/0452 ,  H04B7/0413

Abstract: Provided are a method and a device for transmitting a feedback frame in a wireless LAN system. Particularly, a first wireless station receives, from a second wireless station, a feedback request field including an LTF. The first wireless station configures feedback information on a wireless channel corresponding to a preset frequency band by using the feedback request field. The first wireless station transmits the feedback information to the second wireless station.

公开(公告)号：US10863490B2

公开(公告)日：2020-12-08

申请号：US16436450

申请日：2019-06-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W72/04 ,  H04W4/70 ,  H04W84/12 ,  H04W28/10 ,  H04W72/08 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04B7/06 ,  H04W88/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.

公开(公告)号：US10608791B2

公开(公告)日：2020-03-31

申请号：US16411971

申请日：2019-05-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/16 ,  H04L29/06 ,  H04B7/0452 ,  H04B7/0413 ,  H04B7/06 ,  H04L1/00 ,  H04W72/04 ,  H04W84/12

Abstract: A downlink (DL) multi-user (MU) transmission method in a wireless local area network (WLAN) system, the DL MU transmission method including receiving a DL MU physical protocol data unit (PPDU) including a physical preamble and a data field from STA (Station) and transmitting the ACK frames in response to the DL MU PPDU to STA. In addition, the data field includes at least one medium access control (MAC) protocol data unit (MPDU), the at least one MPDU includes a MAC header and a MAC frame body, wherein the MAC header includes acknowledge (ACK) indication information, the ACK indication information includes frequency resource allocation information for an uplink (UL) MU orthogonal frequency division multiple access (OFDMA) transmission of ACK frames and modulation and coding scheme (MCS) level information, and the frequency resource allocation information includes an index value indicating a resource unit allocated for the UL MU OFDMA transmission of the ACK frames, and the resource unit corresponds to a 26-tone resource unit, a 52-tone resource unit, a 106-tone resource unit, a 242-tone resource unit, a 484-tone resource unit, or a 996-tone resource unit.

公开(公告)号：US10560242B2

公开(公告)日：2020-02-11

申请号：US15745663

申请日：2016-01-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W84/12 ,  H04L29/06

Abstract: A method for performing an uplink (UL) multi-user (MU) transmission performed by a station (STA) device in a Wireless LAN (WLAN) system according to an embodiment of the present invention may include receiving a Downlink (DL) MU Physical Protocol Data Unit (PPDU) including a physical preamble and a data field; and where the data field includes at least one Mac Protocol Data Unit (MPDU), where the at least one MPDU includes a trigger frame or a MAC header, where the trigger frame or the MAC header includes trigger information for a UL MU transmission of an ACK (Acknowledge) frame, and performing a UL MU transmission of the ACK frame in response to the DL MU PPDU based on the trigger information.

公开(公告)号：US10523361B2

公开(公告)日：2019-12-31

申请号：US15742437

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04L1/00 ,  H04L27/26 ,  H04W84/12 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04W74/00 ,  H04W92/20

Abstract: An embodiment of the present invention suggests a method in which an access point (AP) obtains channel quality information in a wireless LAN system. The AP transmits, to at least one station (STA), a null data packet announcement (NDP-A) frame including information on transmission of a subsequent null data packet (NDP) frame, and transmits an NDP frame to the at least one station on the basis of information on the NDP-A frame. Further, the AP receives, from the at least one STA, a feedback frame including downlink channel quality information. At this time, the NDP frame includes an L-part for a legacy STA and a high efficiency (HE)-part for a HE STA, wherein the HE-part consists of a HE-signaling A (HE-SIG A) field, a HE-short training field (HE-STF), and a HE-long training field (HE-LTF).

公开(公告)号：US10516557B2

公开(公告)日：2019-12-24

申请号：US15751447

申请日：2016-08-09

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04L27/20 ,  H04W84/12 ,  H04L27/26 ,  H04L1/00

Abstract: Disclosed according to one embodiment of the present invention is a method whereby a first station (STA) transmits signals using dual carrier modulation (DCM) in a wireless LAN system, comprising: modulating HE-SIG B field information and/or data field information on a wireless frame transmitted by the first STA and transmitting same to a second STA, wherein in the case of modulating the HE-SIG B field information and/or the data field information in a BPSK mode, if a random symbol C1 among symbols modulated in the BPSK mode is mapped to a subcarrier K, a symbol formed by rotating the phase of the symbol C1 is mapped to a subcarrier K+N/2 in a repeating manner, wherein N corresponds to the number of subcarriers of a resource unit for transmitting the HE-SIG B field information and the data field information and K is a random integer equal to or less than N/2.

公开(公告)号：US10454732B2

公开(公告)日：2019-10-22

申请号：US15504639

申请日：2015-04-07

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Wookbong Lee ,  Hangyu Cho ,  Eunsung Park

IPC: H04L27/26 ,  H04W84/12

Abstract: Disclosed is a method for transmitting a preamble in a wireless LAN system, and a station device for performing the same. To this end, a station for transmitting a preamble configures a wireless frame including a first type terminal frame portion, and a second type terminal frame portion. The first type terminal frame portion includes a first type terminal preamble including a first type terminal short training field (STF) and a first type terminal long training field (LTF), and the second type terminal frame portion includes a second type terminal preamble including a second type terminal SFT and a second type terminal LTF. Here, the station configures the second type terminal preamble by allocating sequence components at an interval of an integer number of tones in a frequency domain and transmits the configured wireless frame to another station.

公开(公告)号：US10374767B2

公开(公告)日：2019-08-06

申请号：US15767701

申请日：2016-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk Lim ,  Jinyoung Chun ,  Jinsoo Choi ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: Provided is a method for a first station (STA) transmitting a frame to a second STA in a wireless LAN system. To this end, the first STA generates a wireless frame comprising a first part (L-part) for a first-type STA and a second part (HE-part) for a second-type STA, wherein the first part comprises a legacy short training field (L-STF), a legacy long training field (L-LTF) and a legacy signaling field (L-SIG), and the length of the L-SIG is set so as to indicate that the wireless frame is a frame of different types according to the remainder when the length of the L-SIG is divided by a predetermined natural number.

公开(公告)号：US10349388B2

公开(公告)日：2019-07-09

申请号：US15242008

申请日：2016-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Jeongki Kim ,  Jinsoo Choi ,  Dongguk Lim ,  Hangyu Cho ,  Jinmin Kim ,  Eunsung Park

IPC: H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L1/00 ,  H04W84/12 ,  H04W28/10 ,  H04W4/70 ,  H04L1/06 ,  H04B7/06 ,  H04W88/08

Abstract: Disclosed herein is a sounding method of a station (STA) for sending feedback information about a downlink (DL) channel state in a wireless LAN (WLAN) system. The sounding method includes receiving an NDP announcement (NDPA) frame providing notification of the transmission of a null data packet (NDP) frame; receiving the NDP frame; receiving a trigger frame comprising resource allocation information allocated to the STA; generating feedback information using the NDP frame; and sending a feedback frame comprising feedback information through uplink (UL) multi-user (MU) transmission using a frequency resource indicated by the resource allocation information. The feedback information may be generated in a frequency granularity (FG) unit with respect to a transmission bandwidth having a size smaller than or equal to the size of a transmission bandwidth of the NDP frame.