公开(公告)号：US20210226747A1

公开(公告)日：2021-07-22

申请号：US17222320

申请日：2021-04-05

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04J11/00 ,  H04W74/00

Abstract: A wireless communication system and, more particularly, to a method for performing efficient signaling for a reserved sub-band in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, an STA provides resource allocation information for transmitting data to a plurality of STAs using an orthogonal frequency divisional multiple access (OFDMA) or multiple user MIMO (MU-MIMO) method; transmits the resource allocation information to the plurality of STAs; and transmits data to the plurality of STAs according to the resource allocation information. The entire frequency band may include a sub-band which is not used for the data transmission, and it is preferable that the resource allocation information includes a resource allocation bitmap having a form common to the plurality of STAs and indication information which informs a sub-band, from among the entire frequency band, which is not used for the data transmission.

公开(公告)号：US20210211927A1

公开(公告)日：2021-07-08

申请号：US16078005

申请日：2017-02-17

Applicant: LG ELECTRONICS INC.

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

IPC: H04W28/02 ,  H04W72/12

Abstract: A method for performing uplink transmission in a wireless LAN system according to an embodiment of the present specification may comprise the steps of: receiving, by an AP, a buffer state report frame from a reception STA coupled to the AP, wherein the buffer state report frame is a frame in which a first frame and a second frame are aggregated, the first frame including a first traffic identifier indicating a transmission priority of a first traffic buffered in the reception STA and first queue size information indicating the amount of the buffered first traffic, and the second frame including a second traffic identifier indicating a transmission priority of a second traffic buffered in the reception STA and second queue size information indicating the amount of the buffered second traffic; and transmitting, by the AP, a trigger frame for a plurality of user STAs participating in UL MU transmission on the basis of a buffer state report frame.

公开(公告)号：US20210195622A1

公开(公告)日：2021-06-24

申请号：US17058579

申请日：2019-06-14

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/12 ,  H04W72/04

Abstract: A method and a device for receiving uplink data in a WLAN system are proposed. Specifically, an AP transmits a beacon frame to a first STA or a second STA. The AP receives uplink data from the first STA or the second STA based on the beacon frame. The beacon frame includes information about a transmission mode for the uplink data for each channel in a first band and each channel in a second band. The uplink data is transmitted based on contention when the information about the transmission mode for the uplink data is set to a first value. The uplink data is transmitted based on scheduling when the information about the transmission mode for the uplink data is set to a second value.

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.