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公开(公告)号：US10405338B2
公开(公告)日：2019-09-03
申请号：US15527692
申请日：2015-11-30
Applicant: LG ELECTRONICS INC.
Inventor： Jinyoung Chun , Kiseon Ryu , Wookbong Lee , Hangyu Cho
Abstract: Disclosed is an uplink (UL) multi-user (MU) transmission method by a station (STA) in a wireless LAN (WLAN) system. The uplink multi-user transmission method by an STA in a WLAN system according to the present invention includes the steps of: receiving a trigger frame including resource unit allocation information for orthogonal frequency division multiple access (OFDMA) transmission; transmitting a UL MU physical protocol data unit (PPDU) frame, on the basis of frequency resource allocation information; and receiving an ACK frame for the UL MU PPDU.
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公开(公告)号：US10397916B2
公开(公告)日：2019-08-27
申请号：US15574777
申请日：2016-05-20
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki Kim , Kiseon Ryu , Hangyu Cho
Abstract: The present invention relates to a method for performing random access in a wireless LAN system and a device for same. To this end, a station receives from an AP a frame comprising resource allocation information for random access and performs backoff, on the basis of a predetermined contention window size, in resources allocated on the basis of the resource allocation information for random access. In addition, the station transmits, at a first point in which a backoff counter reaches 0, a second frame by means of randomly selected resources which have been randomly selected among the resources that have been allocated as specified, wherein the STA performs clear channel assessment (CCA) for the resources that have been allocated on the basis of the resource allocation information for random access and thus controls the transmission of the second frame by means of the randomly selected resources on the basis of a CCA result.
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公开(公告)号：US10383093B2
公开(公告)日：2019-08-13
申请号：US15516007
申请日：2016-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki Kim , Wookbong Lee , Kiseon Ryu , Jinsoo Choi , Hangyu Cho
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.
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214.发明申请公开(公告)号：US20190229862A1
公开(公告)日：2019-07-25
申请号：US16374565
申请日：2019-04-03
Applicant: LG ELECTRONICS INC.
Inventor： Suhwook Kim , Kiseon Ryu , Jeongki Kim , Hangyu Cho , Hyunhee Park
CPC classification number: H04L5/0007 , H04L5/0053 , 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.
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公开(公告)号：US10362606B2
公开(公告)日：2019-07-23
申请号：US15491912
申请日：2017-04-19
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki Kim , Kiseon Ryu , Hangyu Cho
Abstract: Improved uplink multi-user (UL MU) resource allocation is proposed. For the UL MU scheduling information of trigger frame, N (N>1) bits indicate allocated resource unit (RU) in unit of 26-tone RU, 52-tone RU, 106-tone RU, 242-tone RU, 484-tone RU and 996-tone RU in 80 MHz, and indicates the allocated RU in 80+80 MHz. The UL MU scheduling information of a multi-user request-to-send (MU-RTS) frame indicates an allocated channel corresponding to ‘242*M’-tone RU with a same bit pattern as the N bits of the first UL MU scheduling information, wherein ‘M’ is an integer greater than 0.
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Patent Agency Ranking
216.发明授权公开(公告)号：US10349445B2
公开(公告)日：2019-07-09
申请号：US15567489
申请日：2016-05-16
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki Kim , Kiseon Ryu , Jinsoo Choi , Hangyu Cho
Abstract: According to an embodiment of the present invention, a method for managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a frame including an HE-SIG A field and an MAC header; and updating an NAV on the basis of a transmission opportunity duration (TXOP) field included in the HE-SIG A field, wherein, in the step of updating the NAV, the STA may set, for the NAV of the STA, a TXOP duration value indicated by the TXOP duration field when the TXOP duration value indicated by the TXOP duration field is larger than a current NAV value configured by the STA, and the STA may reset the NAV of the STA without comparison with the current NAV value when the TXOP duration field indicates a predetermined value.
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公开(公告)号：US10341075B2
公开(公告)日：2019-07-02
申请号：US15536313
申请日：2015-12-23
Applicant: LG Electronics Inc.
Inventor： Jeongki Kim , Kiseon Ryu , Jinyoung Chun , Suhwook Kim , Hangyu Cho
Abstract: The present document relates to a method for transmitting an acknowledgement/negative acknowledgement (ACK/NACK) signal for transmission data of a plurality of stations (STAs) by an access point (AP) in a wireless LAN (WLAN) system, and an apparatus therefor. To this end, the AP transmits a trigger frame to the plurality of STAs, and on receiving data from the plurality of STAs in response to the trigger frame, transmits ACK/NACK signals for the data received from the plurality of STAs through a multiuser block ACK frame (M-BA frame). Here, the M-BA frame includes ACK/NACK signals for STAs, the number of which is determined so as not to exceed a specific transmission unit time, among the ACK/NACK signals for the plurality of STAs, and the AP additionally transmits ACK/NACK signals to one or more STAs, to which ACK/NACK signals have not been transmitted through the M-BA, among the plurality of STAs.
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公开(公告)号：US10334007B2
公开(公告)日：2019-06-25
申请号：US15506632
申请日：2015-08-27
Applicant: LG ELECTRONICS INC.
Inventor： Jinyoung Chun , Kiseon Ryu , Wookbong Lee , Hangyu Cho
Abstract: According to an aspect of the present invention, a method for performing a downlink (DL) multi-user (MU) transmission by an access point (AP) in a wireless communication system may include transmitting a DL MU Physical Protocol Data Unit (PPDU), where the DL MU PPDU includes a trigger frame including trigger information for an uplink (UL) MU transmission and a DL MU frame; and UL MU receiving a UL MU PPDU generated based on the DL MU PPDU, where the UL MU PPDU includes a UL MU frame based on the trigger frame and an acknowledge (ACK) frame in response to the DL MU frame.
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219.发明授权公开(公告)号：US10327250B2
公开(公告)日：2019-06-18
申请号：US15514781
申请日：2015-09-25
Applicant: LG ELECTRONICS INC.
Inventor： Jeongki Kim , Kiseon Ryu , Giwon Park , Suhwook Kim , Hangyu Cho
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.
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220.发明授权公开(公告)号：US10299261B2
公开(公告)日：2019-05-21
申请号：US15502973
申请日：2015-08-05
Applicant: LG ELECTRONICS INC.
Inventor： Jinyoung Chun , Kiseon Ryu , Wookbong Lee , Jinsoo Choi , Dongguk Lim , Hangyu Cho
Abstract: The present invention discloses a method and device for downlink multi-user (DL MU) transmission in a wireless communication system. In particular, the method for downlink multi-user data transmission in the wireless communication system includes the steps of receiving, by a station (STA), a DL MU data frame from an access point (AP) and transmitting, by the STA, an acknowledgement (ACK) frame in response to the DL MU data frame, wherein a plurality of ACK frames transmitted by a plurality of STAs in response to the DL MU data frame is multiplexed to configure an uplink multi-user (UP MU) ACK frame, and the time and/or size of a frequency resource at which the ACK frame is transmitted may be determined according to the level of a modulation and coding scheme (MCS) that is applied to the ACK frame.
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