公开(公告)号：US20210168868A1

公开(公告)日：2021-06-03

申请号：US17267805

申请日：2019-07-23

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04L5/00

Abstract: A method and an apparatus for transmitting a PPDU in a WLAN system are proposed. Particularly, a transmission device receives configuration information relating to a multi-band. The transmission device performs channel sensing with respect to the multi-band. The transmission device transmits PPDUs to a reception device via the multi-band on the basis of the result of the channel sensing. In the multi-hand, a first band and a second band are combined. The first band includes a first primary channel. The second band includes a second primary channel. The channel sensing is performed on the basis of a first CW value which is set in common for the first and second bands. If transmission of some PPDUs allocated to the second band of the PPDUs fails, the first CW value is increased.

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：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：US20200092914A1

公开(公告)日：2020-03-19

申请号：US16691275

申请日：2019-11-21

Applicant: LG ELECTRONICS INC.

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

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

Abstract: One embodiment of the present invention relates to a method by which a station (STA) performs uplink transmission in a wireless communication system, the method for performing uplink transmission comprising the steps of: receiving a trigger frame from an AP; and performing uplink transmission as a response to the trigger frame, wherein, when a network allocation vector (NAV) of the STA receiving the trigger frame is idle and clear channel assessment (CCA) result is idle, the uplink transmission is performed.

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：US20200084716A1

公开(公告)日：2020-03-12

申请号：US16686675

申请日：2019-11-18

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W72/12 ,  H04W72/04 ,  H04W74/00

Abstract: A method in a wireless local area network (WLAN) includes receiving, from an access point (AP) by a station (STA), a beacon frame comprising a first field related to a transmission time of a trigger frame, wherein the trigger frame includes frequency resource information to be used for an uplink multi-user (UL MU) transmission, wherein the frequency resource information to be included in the trigger frame includes at least one of first type resource information used for random access and second type resource information used for scheduled access, wherein the random access is performed by the STA based on orthogonal frequency division multiple access (OFDMA), wherein the beacon frame further comprises a second field related to whether or not the trigger frame includes the first type resource information; receiving, from the AP by the STA, the trigger frame based on the first field; determining, by the STA, UL resource to be used for the UL MU transmission based on the first type resource information and the second type resource information; and performing, by the STA, the UL MU transmission based on the UL resource.

公开(公告)号：US20190335424A1

公开(公告)日：2019-10-31

申请号：US16509445

申请日：2019-07-11

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04W84/12 ,  H04B7/0413 ,  H04L27/26

Abstract: The present document relates to a method for allocating resources for multi-user or multi-station (STA) data transmission in a wireless LAN system, and an apparatus therefor. To this end, an AP generates a frame including a signaling field and a data field, wherein the signaling field includes a first signaling field (SIG A field) comprising common control information for a plurality of STAs and a second signaling field (SIG B field) comprising user specific control information for each of the plurality of STAs, the second signaling field also comprising data transmission resource allocation information for each of the plurality of STAs. The AP transmits the thus generated frame to the plurality of STAs. If the frame is transmitted with a bandwidth of 40 MHz or greater, the second signaling field transmits independent control information in two adjacent 20 MHz bands, and the second signaling field, transmitted through a specific 20 MHz band, comprises data transmission resource allocation information within the specific 20 MHz band.