公开(公告)号：US20200163021A1

公开(公告)日：2020-05-21

申请号：US16629282

申请日：2018-07-09

Applicant: LG Electronics Inc.

Inventor： Jeongki KIM ,  Suhwook KIM ,  Kiseon RYU ,  Jinsoo CHOI

IPC: H04W52/02

Abstract: A method by which a station (STA) receives a frame in a wireless (WLAN) according to an embodiment of the present disclosure includes: receiving a first wake-up frame through wake-up radio (WUR); monitoring primary connectivity radio (PCR) according to reception of the first wake-up frame; and receiving a PCR beacon frame through the PCR, wherein the STA maintains monitoring of the WUR for a predetermined period while monitoring the PCR and ends monitoring of the WUR when the STA detects a second wake-up frame indicating transmission of unicast data through the WUR or succeeds in transmitting an uplink (UL) PCR frame to an access point (AP) even before the predetermined period has elapsed.

公开(公告)号：US20200068432A1

公开(公告)日：2020-02-27

申请号：US16489287

申请日：2018-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Saehee BANG ,  Jeongki KIM ,  Jinmin KIM ,  Jinsoo CHOI

IPC: H04W28/04 ,  H04L1/18 ,  H04L1/16

Abstract: A method for frame retransmission performed by a first wireless terminal in a wireless LAN system comprises the steps of: dividing an MSDU received from an upper layer of a first wireless terminal into multiple MPDUs; transmitting the multiple divided MPDUs to a second wireless terminal, wherein each of the multiple divided MPDUs includes division information and transmission sequence information; if an ACK frame for notifying of successful reception of the multiple divided MPDUs is not received until a preset time elapses, transmitting, to the second wireless terminal, a BAR frame for determining at least one MPDU to be retransmitted by the first wireless terminal among the multiple divided MPDUs; receiving a BA frame from the second wireless terminal in response to the BAR frame, wherein the BA frame includes frame information indicating a last MPDU successfully received by the second wireless terminal among the multiple divided MPDUs; and performing a retransmission procedure on the basis of the frame information.

公开(公告)号：US20200029363A1

公开(公告)日：2020-01-23

申请号：US16586835

申请日：2019-09-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L27/26 ,  H04W74/00 ,  H04W72/08

Abstract: A method for performing, by a station (STA) apparatus, uplink (UL) multi-user (MU) transmission in a wireless communication system according to an embodiment of the present invention includes performing carrier sensing on a channel, receiving a trigger frame including information for UL MU transmission and a carrier sense indicator indicating whether a result of the carrier sensing is to be reflected from an access point (AP), and transmitting an UL MU frame through the channel based on the information for UL MU transmission. The UL MU frame is transmitted through the channel based on a result of the carrier sensing if the carrier sense indicator indicates the reflection of a result of the carrier sensing. The UL MU frame is transmitted through the channel regardless of a result of the carries sensing if the carrier sense indicator does not indicate the reflection of a result of the carrier sensing.

公开(公告)号：US20190297567A1

公开(公告)日：2019-09-26

申请号：US16441817

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W74/06 ,  H04W84/12 ,  H04W4/06

Abstract: Disclosed are a method and a device for triggering a plurality of PS-poll frames in a wireless LAN. The method for triggering a plurality of PS-poll frames in a wireless LAN can comprise the steps of: transmitting, by an AP, a beacon frame; transmitting, by the AP, a first PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of first PS-poll frames transmitted on the basis of a UL MU transmission by a first STA group as a response to the first PS-poll trigger frame; transmitting, by the AP, a plurality of first downlink data frames to a plurality of STAs on the basis of a DL MU transmission as a response to the plurality of first PS-poll frames; transmitting, by the AP, a second PS-poll trigger frame within a beacon interval; receiving, by the AP, a plurality of second PS-poll frames transmitted on the basis of the UL MU transmission by a second STA group as a response to the second PS-poll trigger frame; and transmitting, by the AP, a plurality of second downlink data frames to the plurality of STAs on the basis of the DL MU transmission as a response to the plurality of second PS-poll frames.

公开(公告)号：US20190268098A1

公开(公告)日：2019-08-29

申请号：US16411971

申请日：2019-05-14

Applicant: LG ELECTRONICS INC.

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

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

Abstract: A downlink (DL) multi-user (MU) transmission method in a wireless local area network (WLAN) system, the DL MU transmission method including receiving a DL MU physical protocol data unit (PPDU) including a physical preamble and a data field from STA (Station) and transmitting the ACK frames in response to the DL MU PPDU to STA. In addition, the data field includes at least one medium access control (MAC) protocol data unit (MPDU), the at least one MPDU includes a MAC header and a MAC frame body, wherein the MAC header includes acknowledge (ACK) indication information, the ACK indication information includes frequency resource allocation information for an uplink (UL) MU orthogonal frequency division multiple access (OFDMA) transmission of ACK frames and modulation and coding scheme (MCS) level information, and the frequency resource allocation information includes an index value indicating a resource unit allocated for the UL MU OFDMA transmission of the ACK frames, and the resource unit corresponds to a 26-tone resource unit, a 52-tone resource unit, a 106-tone resource unit, a 242-tone resource unit, a 484-tone resource unit, or a 996-tone resource unit.

公开(公告)号：US20190261269A1

公开(公告)日：2019-08-22

申请号：US16404080

申请日：2019-05-06

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/04 ,  H04W72/12 ,  H04W84/12 ,  H04W76/28

Abstract: A method for UL MU transmission of an STA operating in a power save mode comprises the steps of: transmitting a TWT request element including first information related to a requested TBTT of a first beacon frame and second information related to a requested wake interval between subsequent beacon frames the STA intends to receive to an AP; receiving a TWT response element from the AP in response to the TWT request element; switching to a doze state from the awake state after receiving the TWT response element; switching to the awake state from the doze state based on the third information in order to receive the first beacon frame from the AP; receiving the first beacon frame including fifth information related to a trigger transmission time of a trigger frame soliciting the UL MU transmission from one or more STAs from the AP.

公开(公告)号：US20190159212A1

公开(公告)日：2019-05-23

申请号：US16257613

申请日：2019-01-25

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Hangyu CHO ,  Wookbong LEE ,  Jeongki KIM

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

Abstract: Disclosed are a method and a device for allocating a resource unit on the basis of a container in a wireless LAN. The method for allocating a resource unit 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 through at least one container allocated on the entire frequency band, wherein the PPDU includes MU/SU transmission indication information and resource allocation information for each container, the MU/SU transmission indication information includes information on whether an SU-based transmission or an MU-based transmission is carried out on the entire bandwidth, and the resource allocation information for each container can include information on the number of STAs allocated to each of the at least one container.

公开(公告)号：US20190082387A1

公开(公告)日：2019-03-14

申请号：US16081371

申请日：2017-04-26

Applicant: LG ELECTRONICS INC.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Hangyu CHO

IPC: H04W52/02 ,  H04W88/08 ,  H04W72/04

Abstract: When an AP senses a BSS Color collision with a neighbor BSS in a wireless LAN system, the AP can notify a STA of the collision through information indicating whether the BSS Color is deactivated, and the STA performs intra-PDDU power saving only when the information indicating whether the BSS Color is deactivated does not indicate a deactivation.

公开(公告)号：US20190075583A1

公开(公告)日：2019-03-07

申请号：US16093605

申请日：2017-04-17

Applicant: LG ELECTRONICS INC.

Inventor： Hyunhee PARK ,  Kiseon RYU ,  Suhwook KIM ,  Jeongki KIM ,  Hangyu CHO

IPC: H04W72/12 ,  H04W74/04 ,  H04W28/02 ,  H04W28/06

Abstract: A method for an uplink transmission in a wireless LAN system according to one embodiment of the present specification comprises the steps of: transmitting, to an AP, buffer state information for reporting the buffer state of a user STA, the buffer state information comprising a scaling factor configured by the user STA on the basis of a plurality of weighted values for indicating the amount of buffered traffic in the user STA; and transmitting an uplink as a response for a trigger frame when the trigger frame, generated on the basis of the buffer status information, is received from the AP, wherein the trigger frame is a frame comprising a plurality of uplink resource units individually allocated for a plurality of user STAs.

公开(公告)号：US20190069283A1

公开(公告)日：2019-02-28

申请号：US16171142

申请日：2018-10-25

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: H04W72/044 ,  H04L1/00 ,  H04L1/0075 ,  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.