公开(公告)号：US20170127440A1

公开(公告)日：2017-05-04

申请号：US15317662

申请日：2015-04-27

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Wookbong LEE ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Suhwook KIM

IPC: H04W72/12 ,  H04W56/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04W72/1284 ,  H04L1/18 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0055 ,  H04W56/005 ,  H04W72/0453 ,  H04W72/0473 ,  H04W84/12

Abstract: Disclosed are a method and a device for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting an uplink transmission scheduling frame to a plurality of STAs; the AP receiving, as a response to the uplink transmission scheduling frame, a sync PPDU from each STA; the AP transmitting to the plurality of STAs an adjustment frame comprising adjustment information determined on the basis of the sync PPDU; the AP receiving, on overlapped time resources, an uplink frame transmitted on the basis of the adjustment information by means of each STA; and the AP transmitting to each STA an ACK frame with respect to the uplink frame.

公开(公告)号：US20170127298A1

公开(公告)日：2017-05-04

申请号：US15316138

申请日：2015-01-27

Applicant: LG ELECTRONICS INC.

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

IPC: H04W24/02 ,  H04L5/00 ,  H04W28/02 ,  H04W72/12

CPC classification number: H04W24/02 ,  H04L5/0023 ,  H04L5/0055 ,  H04L5/0064 ,  H04L5/0091 ,  H04W28/0278 ,  H04W72/0446 ,  H04W72/1268 ,  H04W72/1284 ,  H04W84/12

Abstract: A method and device for receiving a frame are disclosed. The method for receiving a frame over a wireless LAN may include: transmitting, by an access point (AP), an uplink transmission scheduling frame to a plurality of stations (STA); receiving, by the AP, a sync PPDU in response to the uplink transmission scheduling frame from each of the plurality of STAs; transmitting, by the AP, an adjustment frame, including adjustment information determined based on the sync PPDU, to the plurality of STAs; receiving, by the AP, the uplink frame transmitted based on the adjustment information by each of the plurality of STAs over an overlap time resource; and transmitting, by the AP, an ACK frame of the uplink frame to each of the plurality of STAs.

公开(公告)号：US20170070914A1

公开(公告)日：2017-03-09

申请号：US15241010

申请日：2016-08-18

Applicant: LG ELECTRONICS INC.

Inventor： Jinyoung CHUN ,  Kiseon RYU ,  Jeongki KIM ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO ,  Jinmin KIM ,  Eunsung PARK

IPC: H04W28/10 ,  H04W4/00

Abstract: Disclosed herein is an operating method of a station (STA) in a wireless LAN (WLAN) system. The method includes receiving a downlink (DL) physical protocol data unit (PPDU) and sending an uplink (UL) PPDU as a response to the DL PPDU. The DL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a first high efficiency (HE) control field. The UL PPDU may include at least one MAC protocol data unit (MPDU) and the at least one MPDU may include a second high efficiency (HE) control field. The each of the first and second HE control fields corresponds to an HT control field and comprises a plurality of aggregated HE control subfield. The HT control field includes VHT subfield value set to “1” and HE subfield value set to “1”.

Abstract translation: 这里公开了无线LAN（WLAN）系统中的站（STA）的操作方法。 该方法包括接收下行链路（DL）物理协议数据单元（PPDU）和发送上行链路（UL）PPDU作为对DLPPDU的响应。 DL PPDU可以包括至少一个MAC协议数据单元（MPDU），并且该至少一个MPDU可以包括第一高效率（HE）控制字段。 UL PPDU可以包括至少一个MAC协议数据单元（MPDU），并且该至少一个MPDU可以包括第二高效率（HE）控制字段。 第一和第二HE控制字段中的每一个对应于HT控制字段，并且包括多个聚合的HE控制子字段。 HT控制字段包括VHT子字段值设置为“1”，HE子字段值设置为“1”。

公开(公告)号：US20170063509A1

公开(公告)日：2017-03-02

申请号：US15246104

申请日：2016-08-24

Applicant: LG ELECTRONICS INC.

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

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/0031 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1685 ,  H04W84/12

Abstract: An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.

Abstract translation: 提出了可以在无线LAN系统中使用的ACK信号处理方法。 可以提出可以用于多个接收站的下行链路MU PPDU的各种信息，并且例如为了省略相关技术的重新发送，请求与先前发送的数据相对应的ACK或Block ACK的信息可以 被包括在内。 如果在从AP发送MU-PPDU之后立即确认（ACK）帧不能被接收，则可以请求块ACK。 在这种情况下，当请求块ACK时，可以分配传送块ACK的无线电资源。

公开(公告)号：US20170041952A1

公开(公告)日：2017-02-09

申请号：US15303194

申请日：2015-04-30

Applicant: LG ELECTRONICS INC.

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

IPC: H04W74/08 ,  H04W24/02 ,  H04B17/318

CPC classification number: H04W74/08 ,  H04B17/318 ,  H04L69/323 ,  H04W24/02 ,  H04W84/12

Abstract: The present document relates to a method for determining whether a corresponding medium (for example, a channel) is reusable so as to improve a space reuse rate in a wireless communication system, particularly, a wireless LAN system, and an apparatus for the same. To this end, a station receives a wireless LAN signal through a specific wireless medium, compares the received signal intensity of the wireless LAN signal with a CCA level selected from between a first CCA level and a second CCA level lower than the first CCA level according to the type of the received wireless LAN signal, determines that the corresponding wireless medium is usable if the received signal intensity is lower than the selected CCA level, and can use the wireless medium in a signal transmission.

Abstract translation: 本文件涉及一种用于确定对应的介质（例如，信道）是否可重用以提高无线通信系统，特别是无线LAN系统中的空间重用率的方法及其装置。 为此，站点通过特定的无线介质接收无线LAN信号，将无线LAN信号的接收信号强度与从低于第一CCA电平的第一CCA电平和第二CCA电平之间选择的CCA电平进行比较，根据 对于所接收的无线LAN信号的类型，如果接收到的信号强度低于选择的CCA电平，则确定对应的无线介质是可用的，并且可以在信号传输中使用无线介质。

公开(公告)号：US20170041928A1

公开(公告)日：2017-02-09

申请号：US15227862

申请日：2016-08-03

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Hangyu CHO

IPC: H04W72/04 ,  H04B7/04

CPC classification number: H04B7/0413 ,  H04L1/00 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2613

Abstract: Proposed herein is method and device for generating a sequence for a STF field in a wireless LAN system. A STF signal is included in a field that is used for enhancing AGC estimation of a MUMO transmission. The STF signal is used for an uplink transmission, and the STF signal may be used for an uplink MU PPDU STF, which is transmitted from multiple STAs. The STF signal may be used for at least any one of a first frequency band and a second frequency band, and wherein a first frequency bandwidth may correspond to 20 MHz, and a second frequency bandwidth may correspond to 40 MHz. The STF signal may be generated based on a M sequence. In case the STF signal is being used for the first frequency band, the STF signal may be generated from a {C1*M, 0, C2*M} sequence.

Abstract translation: 这里提出的是用于在无线LAN系统中生成STF字段的序列的方法和装置。 在用于增强MUMO传输的AGC估计的场中包括STF信号。 STF信号用于上行链路传输，并且STF信号可以用于从多个STA发送的上行链路MU PPDU STF。 STF信号可以用于第一频带和第二频带中的至少任一个，并且其中第一频带可以对应于20MHz，而第二频带可以对应于40MHz。 可以基于M序列生成STF信号。 在STF信号用于第一频带的情况下，可以从{C1 * M，0，C2 * M}序列生成STF信号。

公开(公告)号：US20170027001A1

公开(公告)日：2017-01-26

申请号：US15125074

申请日：2015-01-21

Applicant: LG ELECTRONICS INC.

Inventor： Jinsoo CHOI ,  Jinyoung CHUN ,  Wookbong LEE ,  Dongguk LIM ,  Hangyu CHO

IPC: H04W74/08 ,  H04H20/12 ,  H04W52/30 ,  H04L27/26 ,  H04L12/26

CPC classification number: H04W74/0816 ,  H04H20/12 ,  H04L27/2628 ,  H04L43/16 ,  H04L69/323 ,  H04W52/30 ,  H04W84/12

Abstract: Disclosed are a method and an apparatus for transmitting a frame in a wireless LAN. The method for transmitting a frame in a wireless LAN may comprise: a step in which an AP transmits an RTS frame for protecting a medium to an STA; a step in which the AP receives a CTS frame from the STA in response to the RTS frame; and a step in which the AP transmits a data frame to the STA in response to the CTS frame, wherein the RTS frame is included in a first PPDU which is generated on the basis of a first IFFT size, the data frame is included in a second PPDU which is generated on the basis of a second IFFT size, the second IFFT size is greater than the first IFFT size, and the data frame can be transmitted on the basis of a transmission-range-determining parameter which is determined on the basis of the difference between the second IFFT size and the first IFFT size.

Abstract translation: 公开了一种用于在无线LAN中发送帧的方法和装置。 用于在无线LAN中发送帧的方法可以包括：AP将用于保护媒体的RTS帧发送到STA的步骤; AP的响应于RTS帧从STA接收CTS帧的步骤; 以及AP响应于CTS帧向STA发送数据帧的步骤，其中RTS帧被包括在基于第一IFFT大小生成的第一PPDU中，数据帧被包括在 第二PPDU，其基于第二IFFT大小生成，第二IFFT大小大于第一IFFT大小，并且可以基于在基础上确定的传输范围确定参数来发送数据帧 的第二IFFT尺寸和第一IFFT尺寸之间的差异。

公开(公告)号：US20170026952A1

公开(公告)日：2017-01-26

申请号：US15214388

申请日：2016-07-19

Applicant: LG ELECTRONICS INC.

Inventor： Eunsung PARK ,  Jinsoo CHOI ,  Dongguk LIM ,  Hangyu CHO

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W76/00 ,  H04B7/0452 ,  H04L5/00 ,  H04W84/12

Abstract: A method for processing an uplink PPDU in a wireless LAN system is proposed herein. The uplink PPDU may correspond to a PPDU that is received from multiple users. In the receiving device, a first uplink MU PPDU may be received from a first user, and a second uplink MU PPDU may be received from a second user. In this case, CSD of an enhanced method may be applied to LTF signals respective to each of the first uplink MU PPDU and the second uplink MU PPDU. Additionally, an orthogonal mapping matrix may be applied to the LTF signals respective to each of the MU PPDUs as a method ensuring orthogonality between the streams.

Abstract translation: 本文提出了一种在无线LAN系统中处理上行链路PPDU的方法。 上行链路PPDU可对应于从多个用户接收的PPDU。 在接收设备中，可以从第一用户接收第一上行链路MU PPDU，并且可以从第二用户接收第二上行链路MU PPDU。 在这种情况下，增强方法的CSD可以应用于分别对应于第一上行链路MU PPDU和第二上行链路MU PPDU中的每一个的LTF信号。 此外，可以将正交映射矩阵应用于相应于每个MU PPDU的LTF信号，作为确保流之间的正交性的方法。

公开(公告)号：US20170013555A1

公开(公告)日：2017-01-12

申请号：US15113398

申请日：2014-11-20

Applicant: LG ELECTRONICS INC.

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

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04W52/0225 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23

Abstract: A power save mode-based operation method and device in a wireless LAN are disclosed. The power save mode-based operation method and device in a wireless LAN can comprise the steps of: transmitting, by an STA, a first trigger frame to an AP in a first service interval; receiving, by the STA, a downlink frame transmitted by the AP on the basis of the first trigger frame in the first service interval; receiving, by the STA, traffic indication information from the AP in a second service interval after reception of the downlink frame; determining, by the STA, whether a pending downlink frame of the AP exists on the basis of the traffic indication information in the second service interval; and determining, by the STA, a mode for saving power on the basis of whether the pending downlink frame exists.

Abstract translation: 公开了一种无线LAN中基于省电模式的操作方法和设备。 无线LAN中基于省电模式的操作方法和设备可以包括以下步骤：在第一服务间隔中，向STA发送第一触发帧到AP; 由所述STA接收由所述AP基于所述第一服务间隔中的所述第一触发帧发送的下行链路帧; 在接收到下行链路帧之后的第二服务间隔中由STA接收来自AP的业务指示信息; 基于所述第二服务间隔中的所述业务指示信息，由所述STA确定所述AP的未决下行链路帧是否存在; 以及由STA确定基于是否存在未决下行链路帧来节省功率的模式。

公开(公告)号：US20170006559A1

公开(公告)日：2017-01-05

申请号：US15203611

申请日：2016-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Dongcheol KIM ,  Hangyu CHO ,  Yeonghyeon KWON ,  Jaehoon CHUNG

IPC: H04W52/36 ,  H04W72/04 ,  H04W76/02 ,  H04L5/00

CPC classification number: H04W52/365 ,  H04L5/00 ,  H04L5/0058 ,  H04L5/0094 ,  H04L2025/03802 ,  H04W72/0413 ,  H04W72/0473 ,  H04W76/19 ,  H04W88/02

Abstract: An apparatus and method for transmitting a power headroom report in a communication system supporting multi-carriers are disclosed, by which a user equipment is enabled to transmit the power headroom report. According to the present invention, a user equipment calculates a power headroom for each of at least one activated serving cell using a maximum transmission power of the user equipment for each of at least one activated serving cell and transmits the power headroom report including the power headroom for each of the at least one activated serving cell and the maximum transmission power of the user equipment for each of the at least one activated serving cell to a base station. In this case, the power headroom includes an information on power status of the user equipment for each of the at least one activated serving cell.

Abstract translation: 公开了一种用于在支持多载波的通信系统中发送功率余量报告的装置和方法，通过该装置和方法，用户设备能够发送功率余量报告。 根据本发明，用户设备使用至少一个激活的服务小区中的每一个的用户设备的最大发送功率来计算至少一个激活的服务小区中的每一个的功率余量，并且发送包括功率余量的功率余量报告 对于所述至少一个激活的服务小区中的每一个以及所述至少一个激活的服务小区中的每一个到所述基站的用户设备的最大发射功率。 在这种情况下，功率余量包括关于至少一个激活的服务小区中的每一个的用户设备的电力状态的信息。