公开(公告)号：US20210068197A1

公开(公告)日：2021-03-04

申请号：US16641118

申请日：2019-08-22

Applicant: LG Electronics Inc.

Inventor： Jeongki KIM ,  Kiseon RYU ,  Jinsoo CHOI

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

Abstract: An embodiment of the present specification relates to a method and a device used in a wireless local area network (WLAN) system. For example, a WLAN station (STA) may transmit information about a preferred or recommended resource unit to an access point (AP). When a resource unit having a size which does not exceed the size of the resource unit preferred/recommended by the WLAN station is allocated for uplink communication, narrowband communication is possible, thus increasing the chance of successful uplink transmission.

公开(公告)号：US20210067218A1

公开(公告)日：2021-03-04

申请号：US16960011

申请日：2018-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Sungjin PARK ,  Jinmin KIM ,  Sunwoong YUN ,  Jinsoo CHOI

IPC: H04B7/06 ,  H04B7/0452 ,  H04B7/0417 ,  H04B7/26 ,  H04W84/12

Abstract: Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.

公开(公告)号：US20210050914A1

公开(公告)日：2021-02-18

申请号：US16978175

申请日：2019-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Insun JANG ,  Suhwook KIM ,  Jeongki KIM ,  Kiseon RYU ,  Taewon SONG ,  Jinsoo CHOI

IPC: H04B7/26 ,  H04W72/04 ,  H04W84/12

Abstract: A method and apparatus for transmitting a PPDU on the basis of S-TDMA in a wireless LAN system are presented. In particular, an AP generates a PPDU, and transmits the PPDU to a first STA and a second STA. When a PPDU further comprises a third signal field, the third signal field comprises information about S-TDMA. The information about S-TDMA comprises STDMA indication information indicating that S-TDMA can be carried out, first symbol offset information about a first data field, and second symbol offset information about a second data field. The S-TDMA indication information comprises information indicating that the first and second data fields are assigned to a first RU. The first data field is transmitted from the first RU during a first symbol determined on the basis of the first symbol offset information. The second data field is transmitted from the first RU during a second symbol determined on the basis of the second symbol offset information.

公开(公告)号：US20210028917A1

公开(公告)日：2021-01-28

申请号：US17040497

申请日：2019-03-06

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jeongki KIM ,  Kiseon RYU ,  Dongguk LIM ,  Jinsoo CHOI

IPC: H04L5/14

Abstract: A method and an apparatus for transmitting and receiving PPDU on the basis of FDR in a wireless LAN system are presented. Specifically, an AP generates FDR indication information that FDR can be performed. The AP transmits a DL PPDU including the FDR indication information to a first STA. The AP receives a UL PPDU from the first STA. The DL PPDU includes a legacy signal field, a first signal field, a second signal field, a third signal field, and a DL data field. The second signal field includes information on an RU placement in the entire frequency band and allocation information for a first RU to which the DL data field is allocated. The third signal field includes allocation information for a second RU to which the UL PPDU is allocated on the basis of the information on the RU placement. The allocation information for the second RU includes a bitmap of whether the UL PPDU is allocated in units of 26 RUs.

公开(公告)号：US20200329495A1

公开(公告)日：2020-10-15

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 ,  H04W72/04 ,  H04L5/00 ,  H04W76/11

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：US20200245238A1

公开(公告)日：2020-07-30

申请号：US16635968

申请日：2018-08-17

Applicant: LG Electronics Inc.

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

IPC: H04W52/02 ,  H04W76/11 ,  H04L1/16

Abstract: A method by which an access point (AP) transmits a frame in a wireless LAN, according to one embodiment of the present disclosure, comprises: determining a wake-up radio (WUR) identifier (WID) for identifying a station (STA) and a group identifier (GID) for identifying an STA group to which the STA belongs, in a WUR mode; transmitting the WID and the GID through a primary connectivity radio (PCR) so as to allocate, to the STA, the determined WID and GID; and transmitting, based on the GID or the WID, a WUR frame for waking up a plurality of STAs including the STA operating in the WUR mode, wherein the AP can determine the GID by using a part of an ID space which can be used in the WUR, and determine the WID by using the remaining space excluding the partial ID space used for the GID.

公开(公告)号：US20200092815A1

公开(公告)日：2020-03-19

申请号：US16618788

申请日：2018-05-31

Applicant: LG ELECTRONICS INC.

Inventor： Suhwook KIM ,  Kiseon RYU ,  Jinyoung CHUN ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Eunsung PARK

IPC: H04W52/02 ,  H04L27/06 ,  H04L5/00

Abstract: A method for receiving a frame in a wireless LAN system according to the present embodiment comprises the steps of: receiving transmission speed information according to a transmission type of a wakeup packet for a WUR module from a second wireless terminal by a first wireless terminal including a main radio module and the WUR module, wherein the transmission speed information is set on the basis of at least three transmission speeds for the wakeup packet, and the transmission speed information is received on the basis of the main radio module; and receiving the wakeup packet on the basis of the transmission speed information from the second wireless terminal by the first wireless terminal, wherein a header of the wakeup packet includes a transmission type indicator for the transmission type of the wakeup packet, the wakeup packet is modulated according to an on-off keying (OOK) scheme, and the wakeup packet is received on the basis of the WUR module.

公开(公告)号：US20200092811A1

公开(公告)日：2020-03-19

申请号：US16467869

申请日：2017-08-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L27/04 ,  H04W84/12 ,  H04L25/493 ,  H04L27/26

Abstract: A method and a device for transmitting a wakeup packet in a wireless LAN system are suggested. Particularly, a transmission device configures a wakeup packet and transmits same to a reception device. The wakeup packet includes a sequence including first information and second information, by applying an OOK method. The first information and the second formation are configured with an on-signal and an off-signal. The on-signal is transferred via a first symbol generated by applying a first sequence to K number of successive subcarriers in the 20 MHz band and performing 64-point IFFT on the subcarriers. The offsignal is transferred via a second symbol generated by applying a second sequence to the K number of successive subcarriers in the 20 MHz band and performing 64-point IFNT on the subcarriers. Of the K number of subcarriers to which the first sequence is applied, a coefficient for m number of subcarriers as a unit is set to 1 or −1 for the subcarriers, and a coefficient for the remaining subcarriers is set to 0. The first information and the second information are transmitted via a third symbol configured with the first symbol and the second symbol, respectively.

公开(公告)号：US20200059391A1

公开(公告)日：2020-02-20

申请号：US16663701

申请日：2019-10-25

Applicant: LG ELECTRONICS INC.

Inventor： Sunwoong YUN ,  Jinmin KIM ,  Sungjin PARK ,  Jinsoo CHOI

IPC: H04L27/26 ,  H04L1/06 ,  H04L5/00 ,  H04B7/04

Abstract: The present specification presents a method for transmitting and receiving, by a station, a signal in a wireless LAN (WLAN) system supporting eight space time streams at most, and an apparatus therefor. More particularly, the present specification presents a method for transmitting and receiving a signal including a pilot sequence for 3-channel bonding or 4-channel bonding per each space time stream when a station transmits and receives a signal over a channel in which three or four channels are bonded, and an apparatus therefor.

公开(公告)号：US20200059287A1

公开(公告)日：2020-02-20

申请号：US16606731

申请日：2017-12-14

Applicant: LG ELECTRONICS INC.

Inventor： Jinmin KIM ,  Jinsoo CHOI

IPC: H04B7/06 ,  H04L5/00 ,  H04L27/26

Abstract: Disclosed are a method for a station for transmitting and receiving a signal in a wireless local area network (WLAN) system, and an apparatus for the method. More specifically, disclosed are a method for transmitting and receiving a signal and an apparatus for the method, the method, when a station transmits and receives a signal by means of a channel in which four channels have been bonded, generating an enhanced directional multi gigabit (EDMG) short training field (STF) for an orthogonal frequency division multiplexing (OFDM) packet, and transmitting and receiving a signal comprising the generated EDMG STF field.