公开(公告)号：US20190208517A1

公开(公告)日：2019-07-04

申请号：US16292849

申请日：2019-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Wookbong LEE ,  Hangyu CHO ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Eunsung PARK

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04W72/048 ,  H04L1/00 ,  H04L1/0001 ,  H04L1/0003 ,  H04L5/0046 ,  H04L27/26 ,  H04W84/12

Abstract: The present invention relates to a method for transmitting a frame in a wireless communication system, in particular, a high density wireless LAN system, and a station apparatus for performing the same. To this end, a station for transmitting a frame configures a radio frame for a second type station, including a frame part for a first type station and a frame part for the second type station, wherein the frame part for the second type station includes a first signaling field (SIG A) for the second type station and a second signaling field (SIG B) for the second type station. The SIG A for the second type station includes modulation and coding scheme (MCS) information applied to the SIG B for the second type station, and the MCS level applied to the SIG B for the second type station supports an MCS having level than the lowest MCS level defined for the first type station.

公开(公告)号：US20190029024A1

公开(公告)日：2019-01-24

申请号：US16039774

申请日：2018-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Jinyoung CHUN ,  Jinsoo CHOI

IPC: H04W72/08 ,  H04W72/04 ,  H04W48/12 ,  H04W74/08 ,  H04B7/26 ,  H04L5/14

CPC classification number: H04W72/082 ,  H04B7/2653 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/1461 ,  H04W48/12 ,  H04W48/16 ,  H04W72/0446 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/12

Abstract: A method for transmitting a frame in a WLAN system performed by a first wireless device may include: performing a receiving operation for a first STR PPDU within a first time resource based on a wireless channel, wherein the first STR PPDU is received from a second wireless device, and wherein a PHY header includes a BSS color information, an identification information, and an indication information, and, when the first wireless device is indicated by the identification information, in case a NAV timer value according to a logical carrier sense is equal to ‘0’, and in case a result of a physical carrier sense performed for the wireless channel, during a predetermined duration before the receiving operation is started, is in an idle state, performing a transmitting operation for a second STR PPDU within a second time resource overlapping with the first time resource based on the wireless channel.

公开(公告)号：US20180317128A1

公开(公告)日：2018-11-01

申请号：US15770440

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W28/06 ,  H04L5/00 ,  H04L29/06 ,  H04L1/00 ,  H04L1/16 ,  H04B7/06 ,  H04W28/02

Abstract: According to one embodiment of the present invention, an operation method for a station (STA) in a wireless LAN (WLAN) system comprises the steps of receiving a first physical protocol data unit (PPDU), and transmitting a second PPDU as a response to the first PPDU, wherein the first or second PPDU includes at least one MAC protocol data unit (MPDU), a MAC header of the MPDU includes a high-efficiency (HE) control field, the HE control field is a high throughput (HT) field, in which each of values of a very high throughput (VHT) sub-field indicating a VHT format and an HE sub-field indicating an HE format is set to “1”, and includes at least one control sub-field, and the at least one control sub-field is fixed at a preset length and can be included in the HE control field by being aggregated for each control identifier (ID).

公开(公告)号：US20180241597A1

公开(公告)日：2018-08-23

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 ,  H04L1/00

CPC classification number: H04L27/2082 ,  H04L1/00 ,  H04L1/0004 ,  H04L1/04 ,  H04L5/0044 ,  H04L27/26 ,  H04L27/2602 ,  H04L27/2627 ,  H04L27/28 ,  H04W84/12

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：US20180138959A1

公开(公告)日：2018-05-17

申请号：US15567073

申请日：2016-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Hangyu CHO ,  Wookbong LEE ,  Jinsoo CHOI

IPC: H04B7/06

Abstract: According to an embodiment of present invention, a sounding method for an STA (Station) to transmit feedback information of a downlink (DL) channel state in a WLAN (Wireless LAN) system according to one embodiment of the present invention comprises receiving an NDPA (NDP announcement) frame that notifies of transmission of an NDP (Null Data Packet) frame, receiving the NDP frame, receiving a trigger frame including resource allocation information allocated to the STA, generating channel state information on the basis of a training field included in the NDP frame; and performing uplink (UL) multi-user (MU) transmission of the feedback frame including the channel state information by using a frequency resource indicated by the resource allocation information.

公开(公告)号：US20180132109A1

公开(公告)日：2018-05-10

申请号：US15569035

申请日：2015-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Dongguk LIM ,  Jinyoung CHUN ,  Jinsoo CHOI ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W16/10 ,  H04W72/04 ,  H04W76/20 ,  H04W72/12

CPC classification number: H04W16/10 ,  H04L1/00 ,  H04L1/0016 ,  H04L1/0025 ,  H04L27/2602 ,  H04W28/06 ,  H04W52/283 ,  H04W52/34 ,  H04W72/0473 ,  H04W72/1205 ,  H04W76/20

Abstract: A method for receiving, by a station (STA), a signal in a wireless LAN system comprises: a step of receiving a frame which includes a SIG-A field including MCS information for a SIG-B field, and the SIG-B field encoded on the basis of any one MCS set among from multiple MCS sets; and a step of decoding the SIG-B field on the basis of the MCS information included in the SIG-A field, wherein a specific value in the MCS information indicating a first MCS level of a first MCS set from among the multiple MCS sets is re-used to indicate a second MCS level of a second MCS set, and which MCS level of the first MCS level and the second MCS level indicated by the specific value is set in the SIG-B field is implicitly indicated by a status of a channel on which the frame is received.

公开(公告)号：US20170339692A1

公开(公告)日：2017-11-23

申请号：US15329211

申请日：2015-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Hangyu CHO

IPC: H04W72/04 ,  H04L5/00 ,  H04L1/00 ,  H04W88/02 ,  H04W84/12

CPC classification number: H04W72/0446 ,  H04L1/0003 ,  H04L1/1614 ,  H04L1/1621 ,  H04L5/0007 ,  H04L5/0055 ,  H04L27/2602 ,  H04W72/0413 ,  H04W84/12 ,  H04W88/02

Abstract: Disclosed in the present invention are a method for transmitting a frame in a wireless communication system and a device therefor. Specifically, the method for transmitting a frame in a wireless communication system comprises a step in which a station (STA) transmits a frame comprising a legacy-short training field (L-STF), a legacy-long training field (L-LTF), and a signal (SIG) field, wherein the SIG field may comprise a trigger indication and a cascade indication, the trigger indication indicating whether the frame is a trigger frame comprising configuration information of an uplink multi-user (MU) data frame, and the cascade indication indicating whether the frame comprises a medium access control (MAC) frame.

公开(公告)号：US20170331587A1

公开(公告)日：2017-11-16

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 ,  H04W84/12

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：US20170311310A1

公开(公告)日：2017-10-26

申请号：US15517486

申请日：2015-10-13

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon RYU ,  Jeongki KIM ,  Jinyoung CHUN ,  Giwon PARK ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/04 ,  H04W28/02 ,  H04L5/00 ,  H04W84/12 ,  H04W88/08

CPC classification number: H04W72/0413 ,  H04L5/0037 ,  H04L5/0055 ,  H04W28/0278 ,  H04W84/12 ,  H04W88/08

Abstract: Disclosed is a method and device for allocating uplink transmission resources on the basis of buffer status information in a wireless LAN. The method for allocating uplink transmission resources on the basis of buffer status information in a wireless LAN comprises: a step for transmitting, by an AP, a downlink frame containing buffer status report request information to multiple STAs; a step for receiving, by the AP, a plurality of uplink frames on superposed time resources from the multiple STAs, wherein the plurality of uplink frames contain a plurality of pieces of buffer status information of the multiple STAs that are generated on the basis of the buffer status report request information; and a step for determining, by the AP, uplink transmission resources to be allocated to the multiple STAs on the basis of the plurality of pieces of buffer status information.

公开(公告)号：US20170310424A1

公开(公告)日：2017-10-26

申请号：US15516325

申请日：2015-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Hangyu CHO

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

CPC classification number: H04L1/16 ,  H04B7/0413 ,  H04B7/063 ,  H04L1/0025 ,  H04L1/0027 ,  H04L29/06 ,  H04W72/0413 ,  H04W72/0466 ,  H04W84/12

Abstract: Disclosed is a downlink (DL) multi-user (MU) transmission method of an AP device in a wireless local area network (WLAN) system including generating a DL MU physical protocol data unit (PPDU) including a physical preamble and a data field, the data field including at least one MAC protocol data unit (MPDU), the at least one MPDU including a MAC header and a MAC frame body, and the MAC header including ACK indication information for uplink (UL) MU transmission of an ACK frame as a response to data transmitted through the data field, and transmitting the DL MU PPDU.