公开(公告)号：US20190116553A1

公开(公告)日：2019-04-18

申请号：US16087992

申请日：2017-03-24

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W52/02 ,  H04W72/12 ,  H04L5/00

Abstract: Disclosed is a power saving method for a station (STA) in a mobile communication system. On receiving a trigger frame from an access point (AP), a STA transmits a physical protocol data unit (PPDU) to the AP through a multi-user scheme, in response to the trigger frame, wherein the trigger frame includes subsequent scheduling information for each STA. Accordingly, the STA may transit to a doze state on the basis of the subsequent scheduling information for each STA.

公开(公告)号：US20190090224A1

公开(公告)日：2019-03-21

申请号：US16197074

申请日：2018-11-20

Applicant: LG ELECTRONICS INC.

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

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

Abstract: Disclosed are a method and a device for allocating wireless resources for transmitting or receiving data in a wireless LAN. The method for allocating the wireless resources in the wireless LAN can comprise the steps of: allocating, by an access point (AP), each of the plurality of wireless resources for each of a plurality of stations (STAs) over the entire bandwidth; and transmitting, by the AP, a physical protocol data unit (PPDU) to each of the plurality of STAs through each of the plurality of wireless resources, wherein each of the plurality of wireless resources can be a combination of a plurality of wireless resource units defined as having different sizes from each other on a frequency axis.

公开(公告)号：US20190053088A1

公开(公告)日：2019-02-14

申请号：US16070213

申请日：2017-01-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/10 ,  H04W76/10

Abstract: Provided are a method and a device for reporting channel quality for spatial sharing. The device receives, from an access point (AP), a channel quality request for evaluating spatial sharing, and transmits a channel quality report. The channel quality request includes information indicating whether channel quality results for each of a plurality of receive (RX) antennas are requested or an average of the channel quality results using the plurality of RX antennas is requested.

公开(公告)号：US20180359807A1

公开(公告)日：2018-12-13

申请号：US16060398

申请日：2016-12-12

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W80/02 ,  H04W12/06 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04W80/02 ,  H04L5/0053 ,  H04L5/0094 ,  H04W12/06 ,  H04W72/0413 ,  H04W72/0446 ,  H04W74/006 ,  H04W74/04 ,  H04W74/0808 ,  H04W84/12

Abstract: A method for transmitting a frame by a STA in a wireless LAN system according to an embodiment of the present invention may comprise: receiving a first frame from an AP; determining, on the basis of the first frame, a TXOP duration value to be included in a SIG field of a second frame that the STA is to transmit; and transmitting the second frame, in determining the TXOP duration value, the STA calculates a residual TXOP duration that may retain after the second frame is transmitted, on the basis of a TXOP duration indicated through the first frame, and when the residual TXOP duration is not a multiple of a granularity of a time unit used by the SIG field, the STA approximates the residual TXOP duration to be a first TXOP duration value which is a multiple of the granularity.

公开(公告)号：US20180332543A1

公开(公告)日：2018-11-15

申请号：US16046062

申请日：2018-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol KIM ,  Hangyu CHO ,  Yeonghyeon KWON ,  Jaehoon CHUNG

IPC: H04W52/36 ,  H04L5/00 ,  H04W72/04 ,  H04W76/19 ,  H04W88/02 ,  H04L25/03

CPC classification number: H04W52/365 ,  H04L5/00 ,  H04L5/0058 ,  H04L5/0094 ,  H04L2025/03802 ,  H04W72/0413 ,  H04W72/0473 ,  H04W76/19 ,  H04W88/02

Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.

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：US20180288754A1

公开(公告)日：2018-10-04

申请号：US15525006

申请日：2016-08-10

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04

Abstract: Provided is an example related to a control field which is used for PPDU in a wireless LAN system supporting a plurality of RUs. An additional identifier can be comprised in the control field for PPDU. An identifier value comprised in the control field is preferably determined on the basis of whether or not only one RU corresponding to the full bandwidth of a transmission frequency band is arranged. Comprising of information for allocation of RU of the PPDU can be determined on the basis of the identifier value comprised in the control field.

公开(公告)号：US20180254810A1

公开(公告)日：2018-09-06

申请号：US15758325

申请日：2016-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Sanggook KIM ,  Kyungtae JO ,  Hangyu CHO

IPC: H04B7/06 ,  H04B7/08 ,  H04W74/08

Abstract: A method for beamforming training and a device using the same are provided. The device receives, from an access point (AP), a plurality of beacon frames for a sector sweep at a beacon transmission interval (BTI). At least one of the plurality of beacon frames includes an overload indicator indicating an overload state. The device determines whether to initiate a random backoff in an association beamforming training (A-BFT) following the BTI, on the basis of the overload indicator.

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：US20180145811A1

公开(公告)日：2018-05-24

申请号：US15558950

申请日：2016-03-14

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04L5/0053 ,  H04L5/001 ,  H04L5/005 ,  H04L5/0051 ,  H04L27/2613 ,  H04L27/2692 ,  H04L29/08018 ,  H04L69/323 ,  H04W72/0453 ,  H04W84/12

Abstract: A method for transmitting a PPDU of an STA device, including generating an HE-STF sequence, generating a PPDU configured on the basis of the HE-STF sequence and including an HE-STF field having periodicity of 1.6 μs, and transmitting the PPDU such that the HE-STF field included in the PPDU is transmitted via a channel, wherein the HE-STF sequence is configured on the basis of an M sequence, and when the channel is a 20 MHz channel, the HE-STF sequence may be configured to have a structure of {the M Sequence, 0, 0, 0, 0, 0, 0, 0, the M sequence}, when the channel is a 40 MHz channel, the HE-STF sequence may be configured on the basis of a structure in which the HE-STF sequence of the 20 MHz channel is duplicated twice and frequency-shifted, and when the channel is a 80 MHz channel, the HE-STF sequence may be configured on the basis of a structure in which the HE-STF sequence of the 40 MHz channel is duplicated twice and frequency-shifted.