公开(公告)号：US10939414B2

公开(公告)日：2021-03-02

申请号：US16446286

申请日：2019-06-19

Applicant: LG ELECTRONICS INC.

Inventor： Hyeyoung Choi ,  Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W72/04 ,  H04W84/12 ,  H04W76/10 ,  H04L5/00 ,  H04L1/16 ,  H04W74/08 ,  H04W74/00 ,  H04W74/06

Abstract: A method for a station (STA) not having an association identifier (AID) allocated thereto transmitting a signal in a wireless LAN system, according to one embodiment of the present invention, comprises the steps of: transmitting a first frame through at least one resource among resources indicated by a trigger frame; and receiving a multi-STA block Ack (M-BA) frame as a reply to the first frame, wherein, if in the M-BA frame a MAC address of the STA that is different from a first information is detected from at least a part of a first field reserved for the first information, an N-bit of a second field preceding the first field is set as a temporary AID of the STA.

公开(公告)号：US10932292B2

公开(公告)日：2021-02-23

申请号：US16304669

申请日：2017-05-17

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Hyunhee Park ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04 ,  H04W76/11 ,  H04W84/12

Abstract: A method for transmitting a frame in a wireless LAN system according to an embodiment of the present specification comprises a step of transmitting, by a wireless terminal, a trigger frame including identification information for a plurality of user STAs and resource information indicating resource units separately allocated to the plurality of user STAs, wherein, when the trigger frame is an MU RTS frame, the resource information is configured: on the basis of first to fourth index values in a fourth index range in order to indicate a primary 20 MHz channel through which a CTS frame, a response to the MU RTS frame, is to be transmitted; on the basis of fifth and sixth index values in a fifth index range in order to indicate a primary 40 MHz channel through which the CTS frame is to be transmitted; and on the basis of a seventh index value in a sixth index range in order to indicate a primary 80 MHz channel through which the CTS frame is to be transmitted.

公开(公告)号：US10912021B2

公开(公告)日：2021-02-02

申请号：US16337902

申请日：2017-09-25

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki Kim ,  Kiseon Ryu ,  Hyunhee Park ,  Suhwook Kim ,  Hangyu Cho

IPC: H04W52/02 ,  H04W76/11 ,  H04W80/02 ,  H04W84/12

Abstract: A method by which a station (STA) operates in a wake up receiver (WUR) mode in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: entering into the WUR mode by turning off a WLAN transceiver of the STA and turning on a WUR receiver of the STA; starting a timer by entering into the WUR mode; and turning on the WLAN transceiver of the STA when the timer is completed or a wake-up signal for waking up the STA is detected through the WUR receiver, wherein the timer can indicate the remaining time for which the STA can maintain the WUR mode until the STA receives a predetermined WUR signal for confirming the presence of an associated access point (AP).

公开(公告)号：US10904056B2

公开(公告)日：2021-01-26

申请号：US16683022

申请日：2019-11-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/20 ,  H04L1/00 ,  H04W84/12 ,  H04L1/04 ,  H04L27/26 ,  H04L27/28 ,  H04L5/00

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：US10904053B2

公开(公告)日：2021-01-26

申请号：US16338412

申请日：2017-09-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/06 ,  H04L27/26 ,  H04L5/00 ,  H04W52/02 ,  H04W84/12

Abstract: A method for receiving, by an STA, a WUR signal in a wireless LAN system according to an embodiment of the present invention comprises the steps of: monitoring at least one sub-band among multiple sub-bands included in a wireless LAN band through a WUR receiver of the STA in a state in which a wireless LAN receiver of the STA has been turned off; and outputting a wake-up signal to the wireless LAN receiver through the WUR receiver of the STA when a WUR signal for the STA is detected as a result of monitoring the at least one sub-band, wherein the WUR signal includes a wireless LAN preamble transmitted in an OFDM scheme and a WUR payload transmitted in an OOK scheme, the STA detects the WUR signal on the basis of the OOK scheme, thereby acquiring only the WUR payload other than the wireless LAN preamble, and at least one sub-band that the STA monitors may be determined to be specific to a BSS associated by the STA.

公开(公告)号：US10897380B2

公开(公告)日：2021-01-19

申请号：US16404062

申请日：2019-05-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung Park ,  Jinsoo Choi ,  Hangyu Cho

IPC: H04L25/03 ,  H04L27/34 ,  H04L1/00 ,  H04L5/00 ,  H04W84/12 ,  H04L27/26

Abstract: Disclosed are a method and an apparatus for generating an STF signal usable in a wireless LAN system. The STF signal is included in a field used to improve AGC estimation of a MIMO transmission. A portion of the STF signal is used to transmit an uplink, and can be used for uplink MU PPDUs transmitted from a plurality of STAs. The STF that is suggested, for example, is used for a 40 MHz band or an 80 MHz band and can be generated based on a sequence in which a predetermined M sequence is repeated. The predetermined M sequence can be a binary sequence of which the length is 15 bits.

公开(公告)号：US10779274B2

公开(公告)日：2020-09-15

申请号：US16800526

申请日：2020-02-25

Applicant: LG Electronics Inc.

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

IPC: H04W72/04 ,  H04W74/00 ,  H04W84/12 ,  H04L1/00 ,  H04W88/08

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

公开(公告)号：US10764921B2

公开(公告)日：2020-09-01

申请号：US16094192

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee Park ,  Kiseon Ryu ,  Suhwook Kim ,  Jeongki Kim ,  Hangyu Cho ,  Jinsoo Choi

IPC: H04W74/00 ,  H04W84/12 ,  H04W74/08

Abstract: A method for a frame transmitted on the basis of random access in a wireless LAN system according to the present embodiment comprises the steps of: receiving, by a user STA, a trigger frame from an AP, the trigger frame including identification information for random access and resource information indicating a random access resource unit corresponding to the identification information; performing a countdown operation for the random access resource unit by the user STA; and transmitting, by the user STA, a first uplink frame to the AP on the basis of the random access resource unit obtained through the countdown operation, the first uplink frame including buffer status information associated with traffic buffered in the user STA, wherein the first uplink frame is a frame requesting the AP for transmission of a response.

公开(公告)号：US10743316B2

公开(公告)日：2020-08-11

申请号：US16597735

申请日：2019-10-09

Applicant: LG ELECTRONICS INC.

Inventor： Kiseon Ryu ,  Jeongki Kim ,  Hangyu Cho ,  Suhwook Kim

IPC: H04W72/04 ,  H04W52/54 ,  H04W74/08 ,  H04W74/00 ,  H04W52/14 ,  H04W84/12

Abstract: Proposed is a method for determining transmission using a network allocation vector (NAV) in a wireless LAN system. Specifically, after a receiving device receives a trigger frame, which triggers an uplink multiple user transmission, from a transmitting device, whether to transmit an uplink physical layer protocol data unit (PPDU) corresponding to the trigger frame is determined using the NAV of the receiving device. In this case, if the NAV is established by an intra-basic service set (BSS) frame, whether to transmit the uplink PPDU is determined without taking the NAV into consideration.

公开(公告)号：US10728799B2

公开(公告)日：2020-07-28

申请号：US15770440

申请日：2016-10-24

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung Chun ,  Kiseon Ryu ,  Hangyu Cho

IPC: H04W28/06 ,  H04W74/00 ,  H04W80/02 ,  H04W28/02 ,  H04W84/12 ,  H04L1/00 ,  H04L1/16 ,  H04B7/26 ,  H04B7/06 ,  H04L5/00 ,  H04L29/06

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).