公开(公告)号：US20180220357A1

公开(公告)日：2018-08-02

申请号：US15747685

申请日：2016-08-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W48/02 ,  H04W48/08 ,  H04L5/00

CPC classification number: H04W48/02 ,  H04L1/00 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0073 ,  H04L1/1607 ,  H04L1/1614 ,  H04L1/1854 ,  H04L5/0048 ,  H04L5/0055 ,  H04W48/08 ,  H04W74/08 ,  H04W84/12

Abstract: According to one embodiment of the present invention, a method by which a station (STA) performs an extended inter-frame space (EIFS) operation in a wireless LAN system supporting multi-user (MU) transmission comprise the steps of: receiving a MU frame including a SIG-A field and a SIG-B field; estimating, by other STAs for receiving the MU frame, an ACK transmission time (ACK Tx Time) required for transmitting ACK information when the MU frame causes the EIFS operation; and delaying channel access during an EIFS time determined on the basis of the estimated ACK transmission time, wherein the step for estimating the ACK transmission time enables the estimation of the ACK transmission time by assuming the lowest MCS level among modulation and coding scheme (MCS) levels used for the transmission of the ACK information, and the minimum resource (RU) among the RUs used for the transmission of the ACK information.

公开(公告)号：US20180212738A1

公开(公告)日：2018-07-26

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 ,  H04L29/06

CPC classification number: H04L5/0055 ,  H04L1/1685 ,  H04L27/26 ,  H04L69/22 ,  H04W84/12

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：US20180131553A1

公开(公告)日：2018-05-10

申请号：US15563945

申请日：2016-04-04

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L27/2613 ,  H04B7/0452 ,  H04L1/0004 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/02 ,  H04L25/38 ,  H04L27/02 ,  H04W84/12

Abstract: The present specification presents a configuration technique of a field for control information in a wireless communication system. Specifically, presented is a configuration technique of a signal field including user-specific information in a wireless LAN system. A plurality of MCS techniques are applied to each field of a signal field, according to the present embodiment, and each field can be ordered according to the MCS techniques. The signal field according to the present embodiment can be used for a single user or multiple users, wherein the length of each field can be determined for blind decoding of the single user and the multiple users. The signal field according to the present embodiment can be an SIG-B field according to a wireless LAN standard.

公开(公告)号：US20180070344A1

公开(公告)日：2018-03-08

申请号：US15559781

申请日：2016-07-07

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04B7/0452 ,  H04B7/26 ,  H04L1/00 ,  H04L1/0008 ,  H04L1/0059 ,  H04L1/246 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0082 ,  H04L5/0094 ,  H04L27/2602 ,  H04W72/042 ,  H04W84/12 ,  H04W88/08

Abstract: A method for transmitting a frame by an AP includes generating and transmitting a radio frame including a signaling field and a data field. The signaling field includes a SIG A field including first common control information for the plurality of STAs, and a SIG B field including specific control information for each of the plurality of STAs. The second signaling field includes a common field including second common control information for the plurality of STAs, and a specific field following the common field, including the specific control information for each of the plurality of STAs, and the specific field of the second signaling field transmitted in a specific 20-MHz band includes resource allocation information for one or more first-band STAs to which resources are allocated in the first band, and resource allocation information for one or more second-band STAs to which resources are allocated in another 20-MHz band.

公开(公告)号：US20180069678A1

公开(公告)日：2018-03-08

申请号：US15695498

申请日：2017-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04L5/00 ,  H04W72/12

CPC classification number: H04L5/0055 ,  H04L1/1657 ,  H04L1/1854 ,  H04L1/1864 ,  H04L5/0053 ,  H04L5/0094 ,  H04L69/324 ,  H04W72/1284 ,  H04W84/12 ,  H04W92/18

Abstract: A method and apparatus for a first station (STA) to transmit an acknowledgement (ACK) signal to a second STA in a wireless local area network (WLAN) are disclosed. For this end, the first STA receive a first type frame aggregated with a second type frame from the second STA, wherein the first type frame does not include a quality of service (QoS) control field while the second type frame includes the QoS control field. Then, the first STA transmits an ACK signal for the first type frame to the second STA based on an ACK policy of the QoS control field of the second type frame.

公开(公告)号：US20180049240A1

公开(公告)日：2018-02-15

申请号：US15549997

申请日：2015-08-07

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04W74/006 ,  H04W74/0833 ,  H04W84/12

Abstract: A method and an apparatus for increasing transmission coverage of an STA performing an initial access in a wireless LAN are disclosed. An initial access method in a wireless LAN can comprise the steps of: transmitting a trigger frame on a channel by an AP; receiving, by the AP, a first probe request frame transmitted on a first sub-channel by a first STA as a response to the trigger frame; and transmitting, by the AP, on the channel, an MU PPDU including a first probe response frame, which is a response to the first probe request frame, and a second probe response frame, which is a response to the second probe request frame, wherein the channel can include the first sub-channel and the second sub-channel.

公开(公告)号：US20180041918A1

公开(公告)日：2018-02-08

申请号：US15666485

申请日：2017-08-01

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Sungjin PARK ,  Kyungtae JO ,  Hangyu CHO

IPC: H04W28/06 ,  H04B7/06 ,  H04L27/26 ,  H04L12/709

CPC classification number: H04W28/06 ,  H04B7/0613 ,  H04B7/0697 ,  H04L1/00 ,  H04L1/0057 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0037 ,  H04L27/2602 ,  H04L27/2656 ,  H04L45/245 ,  H04L47/41 ,  H04W72/1215

Abstract: The present invention relates to a method performed by a station (STA) for transmitting and receiving signals in a wireless local area network (WLAN) system. More particularly, according to the present invention, when the STA performs signal transmission and reception through channel aggregation, the STA can transmit a signal by mapping spatial stream sequences of each spatial stream in individual channels based on a plurality of pieces of MCS information indicated by a transmitted and received header field or, on the contrary, by obtaining output bit values of a plurality of encoders from spatial stream sequences received through spatial streams in the individual channels. That is, the present invention is directed to a method for transmitting and receiving signals in the above-described manner and device for the same.

公开(公告)号：US20180027556A1

公开(公告)日：2018-01-25

申请号：US15655150

申请日：2017-07-20

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Hangyu CHO ,  Kyungtae JO

IPC: H04W72/04 ,  H04W84/12 ,  H04L29/06

CPC classification number: H04W72/0446 ,  H04B7/0617 ,  H04L5/0023 ,  H04L69/03 ,  H04W16/00 ,  H04W72/046 ,  H04W74/004 ,  H04W74/006 ,  H04W84/12

Abstract: A method of transmitting a signal to a plurality of STAs in a wireless communication system is disclosed in the present specification. The method can include the steps of generating a PPDU for a plurality of the STAs and transmitting the generated PPDU to a plurality of the STAs. In this case, the PPDU is generated based on a first STA among a plurality of the STAs and the first STA may correspond to an STA that the sum of a length of a payload field and a length of a TRN (training) field is longest among a plurality of the STAs.

公开(公告)号：US20170373901A1

公开(公告)日：2017-12-28

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 ,  H04W48/12 ,  H04W72/04 ,  H04L5/00 ,  H04W84/12 ,  H04B7/0452

CPC classification number: H04L27/2613 ,  H04B7/0452 ,  H04L5/003 ,  H04W48/12 ,  H04W72/0406 ,  H04W72/0453 ,  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：US20170359812A1

公开(公告)日：2017-12-14

申请号：US15619342

申请日：2017-06-09

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04W84/12

Abstract: Proposed is a control field including allocation information regarding a resource unit (RU) in a wireless local area network (WLAN) system supporting a plurality of RUs. The control field including the allocation information regarding the RU may be included in an uplink or downlink a physical layer (PHY) protocol data unit (PPDU), and may be designed in consideration of a plurality of frequency bands. A control field corresponding to a specific frequency band may be duplicated in a different frequency band. Further, the control field corresponding to the specific frequency band may be used for scheduling of a data field corresponding to the same frequency band and a data field corresponding to the different frequency band.