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    METHOD FOR UPLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR
    142.
    发明申请
    METHOD FOR UPLINK TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20170303280A1

    公开(公告)日：2017-10-19

    申请号：US15505521

    申请日：2015-08-21

    Applicant: LG ELECTRONICS INC.

    Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Jinsoo CHOI ,  Hangyu CHO

    IPC: H04W72/04 ,  H04L27/26 ,  H04W84/12

    Abstract: Disclosed are an uplink transmission method in a wireless communication system and an apparatus therefor. In detail, the method for a uplink (UL) multi-user (MU) transmission by a station (STA) in a wireless communication system includes receiving a trigger frame including frequency resource allocation information in a subband unit for orthogonal frequency division multiple access (OFDMA) transmission from an access point (AP), and transmitting a UL MU PPDU based on the frequency resource allocation information, wherein the UL MU PPDU includes a high efficiency-short training field (HE-STF), a high-efficiency-long training field (HE-LTF), and a data field, and the HE-STF, the HE-LTF, and the data field are transmitted in a subband indicated by the frequency resource allocation information.

    METHOD FOR TRANSMITTING UPLINK FRAME IN WIRELESS LOCAL AREA NETWORK AND WIRELESS DEVICE USING THE SAME
    143.
    发明申请
    METHOD FOR TRANSMITTING UPLINK FRAME IN WIRELESS LOCAL AREA NETWORK AND WIRELESS DEVICE USING THE SAME 审中-公开

    公开(公告)号：US20170289994A1

    公开(公告)日：2017-10-05

    申请号：US15473528

    申请日：2017-03-29

    Applicant: LG ELECTRONICS INC.

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

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

    CPC classification number: H04L5/0007 ,  H04W74/002 ,  H04W74/02 ,  H04W84/12

    Abstract: According to an embodiment of the present specification, a method for transmitting an uplink frame in a wireless local area network (WLAN) system and performed by a user station (STA) includes: receiving from an access point (AP) a trigger frame comprising association identifier information for orthogonal frequency division multiple access (OFDMA)-based random access and allocation information indicating a resource unit, wherein the association identifier information indicates any one of a first value irrelevant to whether being associated with the AP, a second value for a first STA group associated with the AP, and a third value for a second STA group un-associated with the AP; and performing a countdown operation according to the association identifier information based on a backoff value which is set in a backoff counter of the user STA in order to transmit the uplink frame.

    METHOD AND APPARATUS FOR POWER SAVING MODE OPERATION IN WIRELESS LAN
    146.
    发明申请
    METHOD AND APPARATUS FOR POWER SAVING MODE OPERATION IN WIRELESS LAN 审中-公开

    公开(公告)号：US20170273019A1

    公开(公告)日：2017-09-21

    申请号：US15310078

    申请日：2015-05-11

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04W52/02

    CPC classification number: H04W52/0209 ,  H04W52/0216 ,  H04W74/06 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

    Abstract: Disclosed are a method and an apparatus for power saving mode operation in a wireless LAN. A method, for operating a power saving mode in a wireless LAN, can comprises the steps of: an AP transmitting, on the basis of a virtual bitmap of a TIM element comprised in a beacon frame, a PS-poll request frame to a plurality of target STAs that have received the indication of the existence of pended downlink data; the AP receiving, on overlapped time resources, each of a plurality of PS-poll frames from each of a plurality of PS-poll transmission STAs that are indicated on the basis of the PS-poll request frame among the plurality of target STAs; and the AP, on the overlapped time resources, transmitting each of a plurality of downlink frames to each of the plurality of PS-poll transmission STAs as a response to each of the plurality of PS-poll frames.

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