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1. 发明授权

US09807817B2 Method and apparatus of link adaptation in wireless local area network 有权
公开(公告)号：US09807817B2
公开(公告)日：2017-10-31
申请号：US15138700
申请日：2016-04-26
申请人： LG ELECTRONICS INC.
发明人： Byeong Woo Kang , Ill Soo Sohn , Dae Won Lee , Yong Ho Seok
IPC分类号： H04B17/40 , H04W84/12 , H04B7/0452 , H04L1/00 , H04L1/16
CPC分类号： H04W84/12 , H04B7/0452 , H04L1/0003 , H04L1/0009 , H04L1/0031 , H04L1/1685
摘要： A method of link adaptation performed by an access point supporting multi user (MU) multiple input multiple output (MIMO) in wireless local area network system is provided. The method includes transmitting, to a first station, a physical layer convergence procedure (PLCP) protocol data unit (PPDU) containing a modulation and coding scheme (MCS) request (MRQ) and receiving, from the first station, a MCS feedback (MFB) in response to the MRQ, wherein the first station is one of destination stations of MU-MIMO transmission performed by the access point, and the MFB includes a recommended MCS value computed, by the first station, on the assumption that the first station, as a member of the destination stations, receives data transmitted over at least one spatial stream allocated to the first station in MU-MIMO transmission.

2. 发明授权

US09780937B2 Method for channel sounding in wireless local area network and apparatus for the same 有权
公开(公告)号：US09780937B2
公开(公告)日：2017-10-03
申请号：US14993881
申请日：2016-01-12
申请人： LG ELECTRONICS INC.
发明人： Dae Won Lee , Ill Soo Sohn , Yong Ho Seok
IPC分类号： H04L5/00 , H04B7/06 , H04W84/12 , H04L1/18 , H04W16/28 , H04B7/0452
CPC分类号： H04L5/0053 , H04B7/0452 , H04B7/0636 , H04L1/1812 , H04L5/0023 , H04W16/28 , H04W84/12
摘要： A method, performed by a transceiver, is provided for channel sounding in a wireless local area network. A null data packet announcement (NDPA) frame is received from a transmitter to initiate the channel sounding. A null data packet (NDP) is received from the transmitter, the NDP following the NDPA frame. First feedback data split into a plurality of segments in a single aggregated medium access control protocol data unit (A-MPDU) is transmitted. A retransmission request is received from the transmitter, the retransmission request including a segment retransmission bitmap field indicating at least one segment of the plurality of segments for retransmission. In response to the retransmission request, second feedback data including the at least one segment indicated in the segment retransmission bitmap field is transmitted.

3. 发明授权

US09270438B2 Method for channel sounding in wireless local area network and apparatus for the same 有权
标题翻译：无线局域网中的信道探测方法及其设备
公开(公告)号：US09270438B2
公开(公告)日：2016-02-23
申请号：US14570958
申请日：2014-12-15
申请人： LG ELECTRONICS INC.
发明人： Dae Won Lee , Ill Soo Sohn , Yong Ho Seok
IPC分类号： H04L5/00 , H04B7/06 , H04W84/12 , H04B7/04
CPC分类号： H04L5/0053 , H04B7/0452 , H04B7/0636 , H04L1/1812 , H04L5/0023 , H04W16/28 , H04W84/12
摘要： A method, performed by a transceiver, is described. The transceiver receives a null data packet announcement (NDPA) frame to initiate channel sounding and a null data packet (NDP), the NDP following the NDPA frame. A first report field including beamforming information and a second report field including signal to noise ratio (SNR) information is configured. First feedback data including the first report field and a second report field is split into a plurality of segments. The plurality of segments is transmitted in a single aggregated medium access control protocol data unit (A-MPDU) including MPDUs. A retransmission request including a segment retransmission bitmap field indicating at least one segment of the plurality of segments for retransmission is received. In response to the retransmission request, second feedback data including the at least one segment indicated by the segment retransmission bitmap field is transmitted.
摘要翻译：描述了由收发器执行的方法。收发器接收零数据包通知（NDPA）帧以发起信道声音和NDPA帧之后的NDP空数据包（NDP）。配置包括波束形成信息的第一报告字段和包括信噪比（SNR）信息的第二报告字段。包括第一报告字段和第二报告字段的第一反馈数据被分割成多个段。多个段在包含MPDU的单个聚合介质访问控制协议数据单元（A-MPDU）中传输。接收包括指示用于重传的多个片段中的至少一个片段的片段重传位图字段的重传请求。响应于重传请求，发送包括由片段重发位图字段指示的至少一个片段的第二反馈数据。

4. 发明授权

US08995261B2 Method and apparatus of network traffic offloading 有权
标题翻译：网络流量卸载的方法和装置
公开(公告)号：US08995261B2
公开(公告)日：2015-03-31
申请号：US13654332
申请日：2012-10-17
申请人： LG Electronics Inc.
发明人： Jong Hyun Park , Ill Soo Sohn
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26 , H04W28/02
CPC分类号： H04W28/0231 , H04W28/08
摘要： Method and apparatus of network traffic offloading is disclosed. Network traffic offloading method may include receiving a first network traffic offloading frame from a base station in a cellular network, the first network traffic offloading frame comprising a frame type instructing a scanning start by broadcasting an advertising frame, traffic information indicating traffic expected to be offloaded by the base station and a transmission configuration indicating a period and a duration to transmit the advertising frame, broadcasting the advertising frame based on the transmission configuration to scan at least one access point (AP), receiving at least one invitation frame from the at least one AP and transmitting a probe request frame to an AP selected among the at least one AP to associate with the selected AP.
摘要翻译：披露了网络流量卸载的方法和装置。网络流量卸载方法可以包括从蜂窝网络中的基站接收第一网络流量卸载帧，第一网络流量卸载帧包括指示扫描开始的帧类型，广播帧，预期要卸载的流量信息通过基站和表示发送广告帧的周期和持续时间的传输配置，基于传输配置广播广告帧以扫描至少一个接入点（AP），从至少接收至少一个邀请帧一个AP，并且向所述至少一个AP中选择的AP发送探测请求帧以与所选择的AP相关联。

5. 发明授权

US08948284B2 Method and apparatus of transmitting PLCP header for sub 1 GHz communication 有权
标题翻译：发送用于子1 GHz通信的PLCP报头的方法和装置
公开(公告)号：US08948284B2
公开(公告)日：2015-02-03
申请号：US13670324
申请日：2012-11-06
申请人： LG Electronics Inc.
发明人： Jong Hyun Park , Eun Sun Kim , Yun Jung Yi , Ill Soo Sohn , Bong Hoe Kim
IPC分类号： H04K1/10 , H04L27/28 , H04L27/26
CPC分类号： H04L27/2613
摘要： Method and apparatus of transmitting PLCP header for sub 1 GHz communication is disclosed. A method of transmitting a physical layer convergence protocol (PLCP) header may comprise generating a short training field (STF) sequence over 1 orthogonal frequency division multiplexing (OFDM) symbol, transforming the STF sequence to repeated waveform patterns in time domain and transmitting the PLCP header comprising the STF sequence, wherein the STF sequence may be a sequence transformed to repeated waveform patterns in time domain by inverse discrete Fourier transform (IDFT).
摘要翻译：公开了发送用于1GHz通信的PLCP报头的方法和装置。传输物理层汇聚协议（PLCP）报头的方法可以包括：通过1个正交频分复用（OFDM）符号生成短训练场（STF）序列，将STF序列变换成时域中的重复波形模式，并发送PLCP 包括STF序列的标题，其中STF序列可以是通过反离散傅立叶变换（IDFT）在时域中变换成重复波形图案的序列。

6. 发明授权

US09992765B2 Method for transmitting and receiving a frame in a wireless LAN system and apparatus for supporting same 有权
公开(公告)号：US09992765B2
公开(公告)日：2018-06-05
申请号：US14358681
申请日：2012-11-19
申请人： LG ELECTRONICS INC.
发明人： Jong Hyun Park , Hyang Sun You , Ill Soo Sohn , Bong Hoe Kim
IPC分类号： H04W72/04 , H04B7/26 , H04W84/12
CPC分类号： H04W72/04 , H04B7/2643 , H04B7/2656 , H04W84/12
摘要： The present invention relates to a method for transmitting and receiving a frame performed by an AP in a wireless communication system. The method includes the steps of: transmitting a PST message providing instructions to transmit a frame to at least one STA; and receiving frames from a first STA and a second STA. The PST message includes first subband information indicating a first subband in which a first frame is transmitted from the first STA and second subband information indicating a second subband in which a second frame is transmitted from the second STA.

7. 发明授权

US09736697B2 Method and apparatus for dynamic frequency selection in wireless local area network system 有权
公开(公告)号：US09736697B2
公开(公告)日：2017-08-15
申请号：US14966076
申请日：2015-12-11
申请人： LG ELECTRONICS INC.
发明人： Jong Hyun Park , Ill Soo Sohn , Eun Sun Kim , Yong Ho Seok
IPC分类号： H04W16/10 , H04W16/14 , H04L12/26 , H04W24/08 , H04W84/12 , G01S7/02
CPC分类号： H04W16/10 , G01S7/021 , H04L43/12 , H04W16/14 , H04W24/08 , H04W84/12
摘要： A method for a wireless local area network performed by an access point (AP) configured to communicate over a primary subchannel and a secondary subchannel. The AP transmits a frame including a quiet channel element to a receiving station. The quiet channel element indicates that the secondary subchannel is to be quieted during a quiet interval in which the AP tests the secondary subchannel for a presence of radar transmissions and the receiving station does not send any frame to the AP. The quiet channel element includes an AP quiet mode field indicating whether a communication to the AP is allowed within the primary subchannel during the quiet interval. The primary subchannel and the secondary subchannel are quieted during the quiet interval if the AP quiet mode field indicates the communication to the AP is not allowed with the primary subchannel during the quiet interval.

8. 发明授权

US09642144B2 Method for transmitting and receiving data unit based on uplink multiple user multiple input multiple output transmission and apparatus for the same 有权
公开(公告)号：US09642144B2
公开(公告)日：2017-05-02
申请号：US14946271
申请日：2015-11-19
申请人： LG ELECTRONICS INC.
发明人： Hyang Sun You , Ill Soo Sohn , Yong Ho Seok , Jong Hyun Park
IPC分类号： H04L27/00 , H04W72/04 , H04B7/04 , H04B7/0413 , H04L5/00 , H04W84/12 , H04L27/26 , H04B7/0452 , H04B7/06
CPC分类号： H04W72/046 , H04B7/04 , H04B7/0413 , H04B7/0452 , H04B7/0697 , H04L5/0053 , H04L27/2602 , H04W84/12
摘要： In an aspect, a method of receiving a data unit, performed by an Access Point (AP), in a Wireless LAN (WLAN) system is provided. The method includes transmitting a signal protection frame, the signal protection frame comprising a group ID field indicating a Multiple Input Multiple Output (MIMO) transmission STA group including a first station (STA) and a second STA; and, a spatial stream field indicating a number of spatial streams allocated to each of member STAs included in the MIMO transmission STA group; receiving a first preamble for a first data unit from the first STA; receiving a second preamble for a second data unit from the second STA; and simultaneously receiving the first data unit from the first STA and the second data unit from the second STA.

9. 发明授权

US09258799B2 Method for reporting channel information based on link adaptation in wireless local area network and the apparatus for the same 有权
标题翻译：基于无线局域网中的链路自适应报告信道信息的方法及其装置
公开(公告)号：US09258799B2
公开(公告)日：2016-02-09
申请号：US14297483
申请日：2014-06-05
申请人： LG ELECTRONICS INC.
发明人： Ill Soo Sohn , Yong Ho Seok , Kyoung Young Song , Dae Won Lee , Byeong Woo Kang
IPC分类号： H04W72/04 , H04L1/00 , H04L1/06 , H04W24/10
CPC分类号： H04L1/0003 , H04L1/0025 , H04L1/0026 , H04L1/0027 , H04L1/06 , H04W24/10 , H04W72/04
摘要： A method and device for link adaptation in a wireless local area network system, are discussed. The method may include receiving, by a responding station, from a requesting station, a requesting Physical layer Protocol Data Unit (PPDU) for requesting a modulation and coding scheme (MCS) feedback via a plurality of spatial streams, the requesting PPDU including an MCS request (MRQ) field that is set to one to request the responding station to provide the MCS feedback; and transmitting, by the responding station, to the requesting station, the MCS feedback including a recommended MCS field and a recommended stream field. The recommended MCS field indicates a recommended MCS, the recommended stream field indicates a number of at least one recommended spatial stream, and the number of the at least one recommended spatial stream is less than a number of the plurality of spatial streams used for the requesting PPDU.
摘要翻译：讨论了一种在无线局域网系统中进行链路自适应的方法和装置。所述方法可以包括由响应站从请求站接收用于经由多个空间流请求调制和编码方案（MCS）反馈的请求物理层协议数据单元（PPDU），所述请求PPDU包括MCS 请求（MRQ）字段设置为1以请求响应站提供MCS反馈; 并且由响应站向请求站发送MCS反馈，其包括推荐的MCS字段和推荐流字段。推荐的MCS字段指示推荐的MCS，推荐的流字段指示至少一个推荐的空间流的数量，并且至少一个推荐的空间流的数量小于用于请求的多个空间流的数量 PPDU。

10. 发明申请

US20140314056A1 METHOD FOR TRANSMITTING AND RECEIVING A FRAME IN A WIRELESS LAN SYSTEM AND APPARATUS FOR SUPPORTING SAME 有权
标题翻译：用于在无线LAN系统中发送和接收帧的方法和用于支持它的设备
公开(公告)号：US20140314056A1
公开(公告)日：2014-10-23
申请号：US14358681
申请日：2012-11-19
申请人： LG ELECTRONICS INC.
发明人： Jong Hyun Park , Hyang Sun You , Ill Soo Sohn , Bong Hoe Kim
IPC分类号： H04W72/04
CPC分类号： H04W72/04 , H04B7/2643 , H04B7/2656 , H04W84/12
摘要： The present invention relates to a method for transmitting and receiving a frame performed by an AP in a wireless communication system. The method includes the steps of: transmitting a PST message providing instructions to transmit a frame to at least one STA; and receiving frames from a first STA and a second STA. The PST message includes first subband information indicating a first subband in which a first frame is transmitted from the first STA and second subband information indicating a second subband in which a second frame is transmitted from the second STA.
摘要翻译：本发明涉及一种在无线通信系统中发送和接收由AP执行的帧的方法。该方法包括以下步骤：发送提供向至少一个STA发送帧的指令的PST消息; 以及从第一STA和第二STA接收帧。 PST消息包括指示从第一STA发送第一帧的第一子带的第一子带信息和指示从第二STA发送第二帧的第二子带的第二子带信息。

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