公开(公告)号：US20180026818A1

公开(公告)日：2018-01-25

申请号：US15723979

申请日：2017-10-03

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob BAEK ,  Woosuk KO ,  Sungryong HONG ,  Jaehyung KIM ,  Byeongkook JEONG

IPC: H04L27/26 ,  H04L5/00 ,  H04N19/30 ,  H04L1/00 ,  H03M13/27 ,  H04L1/06

CPC classification number: H04L27/2602 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2721 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/26 ,  H04L2001/0093 ,  H04N19/30

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding DP (Data Pipe) data corresponding to each of a plurality of DPs, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data at DP level, a frame builder for building at least one signal frame including the time interleaved DP data, a modulator for modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US09877230B2

公开(公告)日：2018-01-23

申请号：US15230167

申请日：2016-08-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Runhua Chen ,  Anthony E. Ekpenyong

IPC: H04W28/06 ,  H04L5/00 ,  H04L1/18 ,  H04W72/04 ,  H04L1/06 ,  H04W88/02

CPC classification number: H04W28/06 ,  H04L1/06 ,  H04L1/1812 ,  H04L1/1861 ,  H04L5/0051 ,  H04L5/0055 ,  H04W72/042 ,  H04W88/02

Abstract: A method and apparatus of wireless communication between a base station and at least one user equipment. The method includes: transmitting an enhanced physical downlink control channel from the base station to the at least one user equipment using a demodulation reference signal antenna port; transmitting message from the base station to the at least one user equipment which is scheduled by the enhanced physical downlink control channel; receiving the message at the at least one user equipment; determining at the at least one user equipment whether the message was correctly received; and transmitting an ACK/NAK signal on an ACK/NAK resource determined from the enhanced physical downlink control channel from the at least one user equipment to the base station indicating whether the message was correctly received by the at least one user.

公开(公告)号：US20180006751A1

公开(公告)日：2018-01-04

申请号：US15540642

申请日：2015-12-25

Applicant: KDDI CORPORATION

Inventor： Bingxuan ZHAO ,  Katsuo YUNOKI

IPC: H04J1/02 ,  H04L27/26 ,  H04L5/00 ,  H04W28/06 ,  H04W74/08 ,  H04W72/04

CPC classification number: H04J1/02 ,  H04J11/00 ,  H04L1/0007 ,  H04L1/0008 ,  H04L1/06 ,  H04L5/003 ,  H04L5/0037 ,  H04L27/0006 ,  H04L27/2626 ,  H04W28/06 ,  H04W72/0406 ,  H04W72/0453 ,  H04W74/0808 ,  H04W84/12

Abstract: A wireless communication device transmits data to multiple wireless terminals at the same timing. The wireless communication device includes a complement calculation part configured to calculate the amount of complement for transmission data for each wireless terminal among multiple wireless terminals on multiple subcarriers distributed and assigned thereto, a complementation part configured to complement transmission data using the amount of complement calculated for each wireless terminal, and a transmitter configured to transmit the complemented transmission data to multiple wireless terminals via multiple subcarriers. The wireless communication device further includes a frame generator configured to generate frames (e.g. OFDMA frames) used to multiplex and transmit the complemented transmission data to multiple wireless terminals. The complement calculation part calculates the amount of complement based on the number of available subcarriers, which is determined via carrier sensing.

公开(公告)号：US09860101B2

公开(公告)日：2018-01-02

申请号：US15496230

申请日：2017-04-25

Applicant: Sun Patent Trust

Inventor： Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC: H04L27/26 ,  H04B7/0456 ,  H04L1/00

CPC classification number: H04L27/265 ,  H04B7/0434 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/046 ,  H04B7/0473 ,  H04B7/0617 ,  H04B7/0697 ,  H04B7/08 ,  H04B7/086 ,  H04B7/12 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0045 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0071 ,  H04L1/06 ,  H04L1/0643 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0226 ,  H04L25/0248 ,  H04L25/03942 ,  H04L25/067 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/3405 ,  H04L2001/0093

Abstract: Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.

公开(公告)号：US09860099B1

公开(公告)日：2018-01-02

申请号：US15047488

申请日：2016-02-18

Applicant: NEWRACOM, INC.

Inventor： Yujin Noh ,  Dae Won Lee ,  Sungho Moon ,  Jae Hyun Ahn ,  Hee Jung Yu ,  Minho Cheong

IPC: H04W4/00 ,  H04L27/26 ,  H04B7/12

CPC classification number: H04L27/2602 ,  H04B7/068 ,  H04B7/12 ,  H04L1/06 ,  H04L1/0606 ,  H04L5/0007 ,  H04L27/2626 ,  H04L27/2647

Abstract: Transmitting a frame may include determining a numerology according to a channel bandwidth, indicating the numerology in a field of a frame, and transmitting the frame using the numerology. Receiving a frame may include receiving a preamble of a frame, determining a numerology using the preamble, and receiving later portions of the frame using the numerology. Transmitting a frame may include, for a transmission time slot, determining a value of a first subcarrier of a first Space-Time Stream (STS), determining a value of a second subcarrier of the first STS, and determining, according to complex conjugates or negative complex conjugates of the values of the first and second subcarriers of the first STS, respective values of second and first subcarriers of a second STS. Transmitting a constellation point of a frame may be performed using an orphan subcarrier pair.

公开(公告)号：US09813271B2

公开(公告)日：2017-11-07

申请号：US15284175

申请日：2016-10-03

Applicant: LG ELECTRONICS INC.

Inventor： Jongseob Baek ,  Woosuk Ko ,  Sungryong Hong ,  Jaehyung Kim ,  Byeongkook Jeong

IPC: H04L27/00 ,  H04L27/26 ,  H04L1/00 ,  H04L5/00 ,  H04N19/30 ,  H03M13/27 ,  H04L1/06

CPC classification number: H04L27/2602 ,  H03M13/1102 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2721 ,  H03M13/2906 ,  H03M13/618 ,  H03M13/6362 ,  H04L1/0041 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/26 ,  H04L2001/0093 ,  H04N19/30

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals comprises an encoder for encoding DP (Data Pipe) data corresponding to each of a plurality of DPs, a mapper for mapping the encoded DP data onto constellations, a time interleaver for time interleaving the mapped DP data at DP level, a frame builder for building at least one signal frame including the time interleaved DP data, a modulator for modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter for transmitting the broadcast signals having the modulated data.

公开(公告)号：US09813206B2

公开(公告)日：2017-11-07

申请号：US14846529

申请日：2015-09-04

Applicant: QUALCOMM Incorporated

Inventor： Youhan Kim ,  Ning Zhang

IPC: H04B1/16 ,  H04L5/00 ,  H04L1/00 ,  H04L1/06 ,  H04B7/0413 ,  H04W24/02 ,  H04L27/00 ,  H04L27/34

CPC classification number: H04L5/0044 ,  H04B1/16 ,  H04B7/0413 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0028 ,  H04L1/06 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/34 ,  H04L2001/0092 ,  H04W24/02

Abstract: A method for transmitting information in a wireless system is provided. In this method, the traffic on a plurality of channels can be determined. A bandwidth for a packet can be selected based on the traffic and available channel bandwidths. A modulation and a coding rate can be selected from a plurality of modulations and associated coding rates. The modulation and coding rate can be applied to a segment of the packet, wherein each segment includes one or more bandwidth units. The packet including the selected modulation and coding rate therein can be transmitted on at least one channel

公开(公告)号：US20170317869A1

公开(公告)日：2017-11-02

申请号：US15651143

申请日：2017-07-17

Applicant: Marvell World Trade Ltd.

Inventor： Hongyuan Zhang ,  Sudhir Srinivasa ,  Hyukjoon Kwon ,  Raja Banerjea

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/06 ,  H04L1/06 ,  H04L25/03 ,  H04L25/02 ,  H04W24/10

CPC classification number: H04L27/2646 ,  H04B7/0617 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W24/10

Abstract: Channel data for a plurality of OFDM tones for one or more spatial or space-time streams are determined. A plurality of angle values associated with the one or more spatial or space-time streams and the one or more OFDM tones of the plurality of OFDM tones are determined. For each of the one or more spatial or space time streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tone of the plurality of OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging signal to noise ratio (SNR) values corresponding to one or more OFDM tones of the plurality of OFDM tones. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR.

公开(公告)号：US09807617B2

公开(公告)日：2017-10-31

申请号：US13995155

申请日：2011-09-29

Applicant: Yuan Zhu ,  Alexei Vladimirovich Davydov

Inventor： Yuan Zhu ,  Alexei Vladimirovich Davydov

IPC: H04W16/14 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04B7/0452 ,  H04B7/06

CPC classification number: H04W16/14 ,  H04B7/0452 ,  H04B7/0665 ,  H04L1/0026 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0051

Abstract: An access node of a 3GPP LTE-based wireless communication network comprises a transmitter portion that transmits downlink control information (DCI) to at least one wireless station of a plurality of wireless stations wirelessly accessing the node as a Multi-User Multiple Input Multiple Output (MU-MIMO) wireless communication network. The DCI comprises at least one code word indicating a rank of a channel matrix between the transmitter portion of the node and the wireless station greater than 4 and a spatial-related configuration for the wireless station. In one exemplary embodiment, the transmitter portion transmits the DCI from one substantially localized geographical transmission point forming a single-cell access point for the plurality of wireless stations. In another exemplary embodiment, the transmitter portion transmits the DCI from multiple geographically substantially isolated transmission points forming a single-cell access point.

公开(公告)号：US09801159B2

公开(公告)日：2017-10-24

申请号：US13261499

申请日：2011-04-21

Applicant: Kazuaki Takeda ,  Nobuhiko Miki ,  Hidekazu Taoka

Inventor： Kazuaki Takeda ,  Nobuhiko Miki ,  Hidekazu Taoka

IPC: H04W72/04 ,  H04W72/12 ,  H04L1/18 ,  H04L1/06 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0038 ,  H04L1/06 ,  H04L1/1854 ,  H04L5/0053 ,  H04W72/1263

Abstract: The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method that can adequately allocate resources of response signals for retransmission for spatially-multiplexed signals respectively corresponding to a plurality of layers via the uplink and that support next-generation mobile communication systems. Discloses is a configuration to receive signals in which a plurality of layers are spatially-multiplexed on the uplink from a mobile terminal apparatus (10), generate HARQ ACK/NACK for signals received in the layers on the uplink, and allocate HARQ ACK/NACK for transport blocks associated with the layers, to PHICH resources, using the offset values that are fixedly defined in advance with the mobile terminal apparatus (10) for every uplink layer.