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公开(公告)号：US09876882B2
公开(公告)日：2018-01-23
申请号：US15397453
申请日：2017-01-03
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Yu Jin Noh , Byeong Woo Kang , Yong Ho Seok
IPC: H04L29/08 , H04B7/0452 , H04L27/26 , H04W84/12
CPC classification number: H04L69/323 , H04B7/0452 , H04B7/0456 , H04B7/06 , H04L27/2626 , H04L27/2646 , H04L27/2647 , H04L27/28 , H04W84/12
Abstract: A method for transmitting data in a wireless local area network, the method comprising: receiving, by a receiving station, a physical layer protocol data unit (PPDU) from a transmitting station, the PPDU including a signal-A field, the signal-A field including a bandwidth in which the PPDU is received, decoding the PPDU, wherein, when the PPDU is used for single-user (SU) transmission, the PPDU is decoded with assuming that the PPDU does not include a signal-B field, and, when the PPDU is used for multi-user (MU) transmission, the PPDU is decoded with assuming that the PPDU include the signal-B field, and wherein the signal-B field includes a modulation and coding scheme (MCS) used for the receiving station.
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12.发明授权公开(公告)号：US09860877B2
公开(公告)日：2018-01-02
申请号：US15142379
申请日：2016-04-29
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Dae Won Lee , Byeong Woo Kang , Bong Hoe Kim , Yong Ho Seok
IPC: H04W72/04 , H04L5/00 , H04B7/04 , H04W72/08 , H04B7/0413 , H04L29/12 , H04L29/06 , H04L29/08 , H04W84/12 , H04W28/06 , H04W88/08
CPC classification number: H04W72/0406 , H04B7/0413 , H04L5/001 , H04L5/0033 , H04L5/0044 , H04L5/0094 , H04L61/6022 , H04L69/22 , H04L69/323 , H04L69/324 , H04W28/065 , H04W72/04 , H04W72/042 , H04W72/085 , H04W84/12 , H04W88/08
Abstract: According to one embodiment, a method for a wireless local area includes: generating a medium access control (MAC) protocol data unit (MPDU) to be transmitted to a target station; generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) by attaching a PLCP preamble to the MPDU; selecting a transmission channel; and transmitting the PPDU to the target station over the transmission channel. Selecting the transmission channel includes: performing clear channel assessment (CCA) on a first channel to determine whether the first channel is idle; and only after it is determined that the first channel is idle, selecting the first channel and at least one idle second channel as the transmission channel. The PLCP preamble includes channel allocation information indicating a bandwidth of the transmission channel.
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13.发明授权公开(公告)号：US09826516B2
公开(公告)日：2017-11-21
申请号：US14802763
申请日：2015-07-17
Applicant: LG ELECTRONICS INC.
Inventor： Dong Wook Roh , Bong Hoe Kim , Young Woo Yun , Dong Youn Seo , Dae Won Lee , Jung Hoon Lee , Joon Kui Ahn , Ki Jun Kim
CPC classification number: H04W72/042 , H04J13/10 , H04J13/18 , H04L1/0057 , H04L1/0067 , H04L1/0072 , H04L5/0016 , H04L5/0053 , H04L27/2602
Abstract: A method for transmitting downlink control information and a method for generating a codeword for the same are disclosed. In generating a long code having a low code rate, a basic code of which minimum distance between codes is maximized is repeated by a prescribed number of times and bits of the repeated code are adjusted. Therefore, a minimum distance condition between codes of a long code is satisfied and simultaneously the code can be simply generated. Furthermore, control information can be transmitted with a low error rate by using the generated code.
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公开(公告)号：US09807817B2
公开(公告)日：2017-10-31
申请号：US15138700
申请日：2016-04-26
Applicant: LG ELECTRONICS INC.
Inventor： Byeong Woo Kang , Ill Soo Sohn , Dae Won Lee , Yong Ho Seok
IPC: H04B17/40 , H04W84/12 , H04B7/0452 , H04L1/00 , H04L1/16
CPC classification number: H04W84/12 , H04B7/0452 , H04L1/0003 , H04L1/0009 , H04L1/0031 , H04L1/1685
Abstract: 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.
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公开(公告)号：US09807756B2
公开(公告)日：2017-10-31
申请号：US15246289
申请日：2016-08-24
Applicant: LG ELECTRONICS INC.
Inventor： Seung Jin Ahn , Woo Seong Kim , Mu Ryong Kim , Seung Woo Nam , Dae Won Lee , Kwang Il Kim , Su Hwan Lim
CPC classification number: H04W72/042 , H04L5/003 , H04L5/0048 , H04W8/24 , H04W56/0045 , H04W72/0446 , H04W72/1268 , H04W74/002 , H04W74/08 , H04W74/0833
Abstract: A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment.
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Patent Agency Ranking
公开(公告)号：US09780937B2
公开(公告)日：2017-10-03
申请号：US14993881
申请日：2016-01-12
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Ill Soo Sohn , Yong Ho Seok
CPC classification number: H04L5/0053 , H04B7/0452 , H04B7/0636 , H04L1/1812 , H04L5/0023 , H04W16/28 , H04W84/12
Abstract: 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.
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公开(公告)号：US09749109B2
公开(公告)日：2017-08-29
申请号：US14854544
申请日：2015-09-15
Applicant: LG ELECTRONICS INC.
Inventor： Dae Won Lee , Young Woo Yun , Ki Jun Kim , Suk Hyon Yoon , Joon Kui Ahn , Dong Youn Seo , Eun Sun Kim
IPC: H04L5/00 , H04L12/801 , H04W72/04 , H04W72/12 , H04W88/02
CPC classification number: H04L5/0053 , H04L5/0007 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/0058 , H04L5/0091 , H04L47/10 , H04W72/04 , H04W72/0406 , H04W72/042 , H04W72/121 , H04W72/1289 , H04W88/02
Abstract: According to one embodiment, a user equipment for use in a mobile communication system is configured to: receive control information including a first field and a second field via a control channel, the first field indicating one of N (N≧2) resource block group (RBG) sets and the second field including a bitmap, wherein each bit of the bitmap is used to indicate whether a corresponding resource block (RB) in the indicated one of the N RBG sets is allocated; interpret the first field and the second field for resource allocation in the control information; and receive data using the control information. An RBG set n (0≦n
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18.发明授权公开(公告)号：US09716574B2
公开(公告)日：2017-07-25
申请号：US14694346
申请日：2015-04-23
Applicant: LG ELECTRONICS INC.
Inventor： Byeong Woo Kang , Dong Wook Roh , Yong Ho Seok , Yu Jin Noh , Bong Hoe Kim , Dae Won Lee
CPC classification number: H04L5/0048 , H04L27/2628 , H04W84/12 , H04W99/00
Abstract: A method of transmitting a training signal in a Wireless Local Area Network (WLAN) system includes generating one or more first training signals for a first destination station and one or more second training signals for a second destination station by applying a mapping matrix P to a training signal generation sequence, mapping the first training signals and the second training signals to a plurality of antennas according to an antenna mapping matrix, and performing Inverse Fast Fourier Transform (IFFT) on each of the first training signals and the second training signals mapped to the plurality of antennas and transmitting the training signals through the plurality of antennas.
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公开(公告)号：US09680557B2
公开(公告)日：2017-06-13
申请号：US14968220
申请日：2015-12-14
Applicant: LG ELECTRONICS INC.
Inventor： Hak Seong Kim , Ki Jun Kim , Yu Jin Noh , Dae Won Lee , Bong Hoe Kim
CPC classification number: H04W72/1273 , H04B7/15507 , H04B7/15542 , H04B7/15557 , H04B7/2606 , H04L5/14 , H04W72/042 , H04W72/044 , H04W72/1268 , H04W84/047
Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.
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公开(公告)号：US09661629B2
公开(公告)日：2017-05-23
申请号：US15010348
申请日：2016-01-29
Applicant: LG ELECTRONICS INC.
Inventor： Yu Jin Noh , Byeong Woo Kang , Dae Won Lee , Yong Ho Seok
CPC classification number: H04W72/0446 , H04B7/0452 , H04W28/20 , H04W72/04 , H04W72/0406 , H04W74/0808 , H04W84/12 , H04W88/02 , H04W88/08
Abstract: A method of transmitting a data frame by a station in a wireless local area network (WLAN), A station obtains a transmission opportunity (TXOP) for a bandwidth. The TXOP indicates an interval of time during which the station has a right to initiate frame exchange sequences onto a wireless medium. The station selects a transmit bandwidth parameter of a non-initial data unit of a plurality of data units from available bandwidth parameters. The available bandwidth parameters include a first available bandwidth parameter which is same as a transmit bandwidth parameter of a preceding data unit of the plurality of data units and a second available bandwidth parameter which is narrower than a transmit bandwidth parameter of the preceding data unit. The station transmits, during the TXOP, the non-initial data unit according to the transmit bandwidth parameter of the non-initial data unit.
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