公开(公告)号：US20210006444A1

公开(公告)日：2021-01-07

申请号：US16979504

申请日：2019-03-26

Applicant: LG ELECTRONICS INC.

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

IPC: H04L27/26 ,  H04W52/02 ,  H04W72/04 ,  H04J3/16

Abstract: A method and an apparatus for transmitting a PPDU on the basis of an S-TDMA in a wireless LAN system are presented. Particularly, an AP transmits a trigger frame to a first STA and a second STA. The AP receives, on the basis of the trigger frame, a first trigger-based frame from the first STA and a second trigger-based frame from the second STA. The trigger frame includes a common information field and a user information field. The common information field includes S-TDMA indication information enabling the S-TDMA to be performed. The user information field includes: allocation information on a first RU to which the first trigger-based frame and the second trigger-based frame are transmitted; first symbol offset information on the first trigger-based frame; and second symbol offset information on the second trigger-based frame.

公开(公告)号：US20200351773A1

公开(公告)日：2020-11-05

申请号：US16760024

申请日：2018-11-02

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04L27/06

Abstract: A method for communicating in a wireless LAN system according to the present embodiment comprises the steps in which: a first wireless terminal transmits an association request frame requesting an association with a second wireless terminal to the second wireless terminal on the basis of a main radio module, wherein the first wireless terminal includes a main radio module for communicating with the second wireless terminal and a WUR module for receiving a wakeup packet modulated by the OOK technique from the second wireless terminal, the association request frame includes operation information for the WUR module, and the operation information includes time information required for the first wireless terminal to transition the main radio module from a doze state to a wake state; and the first wireless terminal receives an association response frame from the second wireless terminal in response to the association request frame.

公开(公告)号：US20200037250A1

公开(公告)日：2020-01-30

申请号：US16337385

申请日：2017-09-22

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W84/12 ,  H04W88/08 ,  H04W72/04

Abstract: A method for power management in a wireless LAN system, according to one embodiment of the present specification, comprises the steps of: transmitting a first wake-up packet for a first WUR terminal and a second WUR terminal, wherein the first wake-up packet instructs a first main radio module and a second main radio module to enter into an activation state, and the first wake-up packet includes a first payload, which is modulated according to an On-Off Keying (OOK) method for the first WUR module, and a second payload, which is modulated according to the OOK method for the second WUR module; transmitting a plurality of downlink packets for the first WUR terminal and the second WUR terminal when a preset guard time has elapsed; determining whether at least one acknowledgement packet is received from the first WUR terminal and the second WUR terminal in response to a plurality of downlink packets within a preset retransmission time limit; and transmitting a second wake-up packet according to the determination.

公开(公告)号：US20190373620A1

公开(公告)日：2019-12-05

申请号：US16539479

申请日：2019-08-13

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/10 ,  H04W72/04 ,  H04L5/00

Abstract: A method for a wireless local area network (WLAN) system is discussed. The method includes transmitting, by a first station (STA), a trigger frame triggering uplink multi-user (UL MU) transmission from a second STA, wherein the trigger frame includes preference information related to an access category (AC) type for an aggregation frame to be generated by the second STA and limit information related to a maximum number of traffic identifiers (TIDs) for the aggregation frame; and receiving, by the first STA, a UL frame triggered by the trigger frame, wherein the UL frame is configured based on the aggregation frame and a Quality of Service (QoS) null frame which has an acknowledgement (ACK) policy field being set to no ACK, wherein the aggregation frame is generated from a plurality of QoS data frames of the second STA based on the preference information and the limit information, wherein the QoS null frame is aggregated with the aggregation frame regardless of the preference information and the limit information.

公开(公告)号：US20190281584A1

公开(公告)日：2019-09-12

申请号：US16425634

申请日：2019-05-29

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00

Abstract: A data transmission method of a station (STA) device in a wireless LAN system is disclosed. The data transmission method of an STA device, according to the present invention, comprises: a receiving step of receiving an uplink data frame from a first STA, wherein the uplink data frame includes first receiving operating mode information indicating a receiving operating mode to be changed by the first STA; and a transmitting step of transmitting an ACK frame for the uplink data frame, wherein the ACK frame includes mode change acceptance information indicating whether to accept or reject the change in the receiving operating mode according to the receiving operating mode information.

公开(公告)号：US20190261350A1

公开(公告)日：2019-08-22

申请号：US16400793

申请日：2019-05-01

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04L5/00 ,  H04L27/26

Abstract: The present document relates to a wireless communication system and, more specifically, to a method for flexibly supporting resource allocation in a wireless LAN system, and a method and an apparatus for signal transmission using the same. To this end, a first STA configures a radio frame comprising: a signaling (SIG) field including control information; and a data field in which data can be transmitted via a discontinuous channel or a channel having a bandwidth size that is supported by a legacy system. When the first STA transmits the configured radio frame to a second STA, the SIG field preferably comprises: information about a full bandwidth in which data can be transmitted via the data field; and null indicator information indicating a channel region of the full bandwidth that is not used in data transmission, or used channel indicator information indicating a channel region of the full bandwidth that is used in data transmission.

公开(公告)号：US20190261273A1

公开(公告)日：2019-08-22

申请号：US16333569

申请日：2017-09-28

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02 ,  H04W76/28 ,  H04W76/11 ,  H04W72/04

Abstract: In a wireless local area network system (WLAN), a method and an apparatus for reducing power consumption of a station (STA) comprising a wake-up receiver (WUR) and a WLAN transmitter/receiver are disclosed. To this end, an STA receives a wake-up packet (WUP) including a group-based identifier using the WUR when the WLAN transmitter/receiver is OFF, and switches the WLAN transmitter/receiver to be ON according to WUP information so as to perform WLAN communication using the WLAN transmitter/receiver, wherein one or more of switching the WLAN transmitter/receiver to be ON, and maintaining the ON state are indicated by a traffic indication map (TIM).

公开(公告)号：US20190215905A1

公开(公告)日：2019-07-11

申请号：US16358601

申请日：2019-03-19

Applicant: LG ELECTRONICS INC.

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

IPC: H04W84/12 ,  H04W72/04 ,  H04W28/02 ,  H04W88/10 ,  H04L12/801 ,  H04W74/08 ,  H04W74/00

CPC classification number: H04W84/12 ,  H04L47/10 ,  H04L47/12 ,  H04W28/021 ,  H04W28/0278 ,  H04W72/0413 ,  H04W74/004 ,  H04W74/085 ,  H04W74/0866 ,  H04W88/10

Abstract: A method and an apparatus for triggering uplink data in a wireless LAN are disclosed. A method for receiving uplink data in a wireless LAN may comprise: a step in which an access point (AP) transmits a trigger frame for random connection; and a step in which the AP receives at least one buffer status report frame from at least one STA on a random connection transmission opportunity (TXOP) which is set on the basis of the trigger frame for random connection, wherein the random connection TXOP is allocated for a channel access attempt for transmitting the buffer status report frame of each of a plurality of non-specific STAs, and each of the at least one STA may be an STA which succeeds in the channel access among the plurality of non-specific STAs.

公开(公告)号：US20190124657A1

公开(公告)日：2019-04-25

申请号：US16230496

申请日：2018-12-21

Applicant: LG ELECTRONICS INC.

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

IPC: H04W72/04 ,  H04W74/08 ,  H04L5/00

Abstract: A method and a device for transmitting a frame in a wireless LAN are disclosed. A method for transmitting a data unit in a wireless LAN can comprise the steps of: transmitting, by an AP, an RTS frame for medium protection to a plurality of STAs through a plurality of channels; receiving, by the AP, a CTS frame in response to the RTS frame from each of the plurality of STAs through a first allocation channel, wherein the first allocation channel is at least one of the plurality of channels, which is determined on the basis of the RTS frame; and transmitting, by the AP, downlink data to each of the plurality of STAs through a second allocation channel on the basis of OFDMA in overlapped time resources, wherein the second allocation channel is at least one of the plurality of channels.

公开(公告)号：US20180338325A1

公开(公告)日：2018-11-22

申请号：US15952085

申请日：2018-05-15

Applicant: LG Electronics Inc.

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

IPC: H04W74/08 ,  H04W74/00 ,  H04W8/20 ,  H04W76/11 ,  H04W72/04

CPC classification number: H04W74/085 ,  H04W8/205 ,  H04W72/042 ,  H04W74/004 ,  H04W76/11 ,  H04W84/12

Abstract: A method for transmitting a trigger frame performed by a first wireless terminal may include, configuring a trigger frame of a basic type including a plurality of user information fields for an OFDMA-based random access backoff procedure by a plurality of second wireless terminals, wherein each of the plurality of user information fields includes resource allocation information for a RA resource unit allocated for the OFDMA-based random access backoff procedure, identifier information indicating that the RA resource unit is allocated for the OFDMA-based random access backoff procedure, and TID aggregation limit information indicating the maximum number of TIDs allowed for an A-MPDU generated by a second wireless terminal that has completed the OFDMA random access backoff procedure based on the trigger frame, and wherein the TID aggregation limit information is set to 0 or 1; and transmitting the trigger frame to the plurality of second wireless terminals.