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：US20180124746A1

公开(公告)日：2018-05-03

申请号：US15525038

申请日：2015-11-16

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung CHOI ,  Kiseon RYU ,  Jeongki KIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0055 ,  H04W74/04 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/10 ,  Y02D70/12 ,  Y02D70/122 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/126 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/14 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/20 ,  Y02D70/21 ,  Y02D70/22

Abstract: A data transmission method of a station (STA) device in a wireless LAN system is disclosed. The data transmission method of an STA device, according to the present invention, comprises: a receiving step of receiving an uplink data frame from a first STA, wherein the uplink data frame includes first receiving operating mode information indicating a receiving operating mode to be changed by the first STA; and a transmitting step of transmitting an ACK frame for the uplink data frame, wherein the ACK frame includes mode change acceptance information indicating whether to accept or reject the change in the receiving operating mode according to the receiving operating mode information.

公开(公告)号：US20180091347A1

公开(公告)日：2018-03-29

申请号：US15561726

申请日：2015-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Wookbong LEE ,  Hangyu CHO ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04W28/06 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04L27/2613 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04W28/06 ,  H04W72/042 ,  H04W72/0446 ,  H04W84/12

Abstract: Disclosed herein is a station (STA) device of a wireless LAN (WLAN) system. The STA device includes a radio frequency (RF) unit transmitting and receiving a radio signal; and a processor controlling the RF unit. The processor may generate a high efficiency (HE) physical protocol data unit (PPDU) including a physical preamble and a data field and transmit the PPDU using the RF unit.

公开(公告)号：US20180063824A1

公开(公告)日：2018-03-01

申请号：US15520822

申请日：2016-05-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04

CPC classification number: H04W72/044 ,  H04L1/00 ,  H04W72/04 ,  H04W74/006 ,  H04W84/12 ,  H04W88/08

Abstract: According to an embodiment of the present invention, a method for transmitting a frame by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: configuring a first duration field included in an HE-SIG A field; and transmitting a frame including the HE-SIG A field and an MAC header, wherein the first duration field may be configured to indicate a transmission opportunity (TXOP) value using a number of bits smaller than that of a second duration field included in the MAC header, and a granularity of a time unit used in the first duration field in order to indicate the TXOP value may be configured to be different from a granularity of a time unit used in the second duration field.

公开(公告)号：US20180006781A1

公开(公告)日：2018-01-04

申请号：US15545664

申请日：2016-01-22

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0041 ,  H04L5/0048 ,  H04L5/0073 ,  H04L5/0094 ,  H04L27/26 ,  H04L27/2628 ,  H04W72/0406 ,  H04W72/0453 ,  H04W84/12

Abstract: Proposed are a method and a device for transmitting a signal including a data field in a wireless LAN. For example, an access point (AP) allocates, to a second station, a second frequency band adjacent to a first frequency band, wherein the second frequency band can include a plurality of resource units. In addition, a signal including the data field can be transmitted to the second station through the allocated second frequency band. Furthermore, when the first frequency band is allocated to the first station, the AP can allocate, to the second station, as a null resource unit, a resource unit adjacent to the first frequency band among the plurality of resource units.

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：US20170339673A1

公开(公告)日：2017-11-23

申请号：US15523234

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/044 ,  H04L5/00 ,  H04L5/0048 ,  H04W72/04 ,  H04W72/042 ,  H04W72/121 ,  H04W72/1289 ,  H04W84/12

Abstract: A method and a device for allocating resource units in a wireless LAN are disclosed. The method for allocating resource units in a wireless LAN comprises the steps of: generating, by an AP, a PPDU to be transmitted to a plurality of STAs; and transmitting, by the AP, the PPDU to the plurality of STAs on the whole frequency band, wherein the PPDU includes resource allocation information, the resource allocation information includes first resource unit allocation information for allocating first resource units and second resource unit allocation information for allocating second resource units, the first resource unit allocation information is information relating to the allocation of the first resource units for at least one first STA, among the plurality of STAs, which is to receive the PPDU through the first resource units on the whole frequency band, the second resource unit allocation information is information relating to the allocation of the second resource units for at least one second STA, among the plurality of STAs, which is to receive the PPDU through the second resource units on the whole frequency band, and the number of tones allocated to the first resource units can be larger than the number of tones allocated to the second resource units.

公开(公告)号：US20170338928A1

公开(公告)日：2017-11-23

申请号：US15523275

申请日：2015-11-02

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0051 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/26 ,  H04W84/12

Abstract: A method for transmitting data from a station (STA) device in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble and a data field; and transmitting the PPDU, wherein when the data field is transmitted by using a 106-tone resource unit including first to fourth pilot tones, the positions of the first to the fourth pilot tones may be identical to the positions of four pilot tones from among eight pilot tones included in four 26-tone resource units, which are present at a position corresponding to the 106-tone resource unit, or identical to the positions of four pilot tones from among eight pilot tones included in two 52-tone resource units, which are present at a position corresponding to the 106-tone resource unit.

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.