利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

187 条记录 (耗时 0.024 秒)

    RECEPTION-SIDE APPARATUS AND RADIO COMMUNICATION METHOD
    4.
    发明申请
    RECEPTION-SIDE APPARATUS AND RADIO COMMUNICATION METHOD 有权

    公开(公告)号：US20230131167A1

    公开(公告)日：2023-04-27

    申请号：US18145472

    申请日：2022-12-22

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kenichi TAKIZAWA ,  Masafumi MORIYAMA ,  Fumihide KOJIMA ,  Atsushi KUROSAWA

    IPC分类号： H04B7/0408 ,  H04B7/0456 ,  H04B7/0491 ,  H04B7/06

    摘要： A reception-side apparatus includes: M receive antennas; and a processor configured to execute a first process of acquiring a first signal received from a first transmission-side apparatus from among signals simultaneously received from the N transmission-side apparatuses by receive diversity processing, and acquiring first data by demodulating and decoding the first signal. In the case of N>M, the processor acquires, for each of all patterns of a combination of a first signal, second signals from M−1 transmission-side apparatuses which are to be cancelled by receive diversity processing and third signals from N−M transmission-side apparatuses which are not to be cancelled by the receive diversity processing, a power ratio of power of the first signal relative to total power of the second and third signals based on a predetermined weight and a channel estimate of each signal, and selects a combination with the largest power ratio from among all the patterns.

    Wireless communication apparatus and wireless communication method
    5.
    发明授权
    Wireless communication apparatus and wireless communication method 有权

    公开(公告)号：US11523266B2

    公开(公告)日：2022-12-06

    申请号：US17001961

    申请日：2020-08-25

    申请人： Panasonic Intellectual Property Corporation of America

    发明人： Yao Huang Gaius Wee ,  Michael Hong Cheng Sim ,  Masataka Irie

    IPC分类号： H04W8/00 ,  H04B7/0491 ,  H04B7/06 ,  H04L1/16 ,  H04W48/08 ,  H04W84/12 ,  H04W16/28 ,  H04W48/16

    摘要： A wireless communication apparatus comprising: a frame configuration circuit that generates a transmission frame including DMG beacons, wherein sector ID fields in SSW fields included in the respective DMG beacons indicate one or more transmit sectors used for directional transmissions of the respective DMG beacons, and a field different from the sector ID field included in each DMG beacon indicates whether or not there is quasi-omni transmission; and a transmission wireless circuit that performs, by using the transmit sector indicated by the sector ID field, directional transmission on a first DMG beacon that is included in the DMG beacons and in which the field different from the sector ID field indicates non-quasi-omni transmission and performs quasi-omni transmission on a second DMG beacon that is included in the DMG beacons and in which the different field indicates quasi-omni transmission, in a BTI.

    DATA TRANSMISSION DEVICE AND RECEPTION DEVICE IN WIRELESS AV SYSTEM
    6.
    发明申请
    DATA TRANSMISSION DEVICE AND RECEPTION DEVICE IN WIRELESS AV SYSTEM 有权

    公开(公告)号：US20220311479A1

    公开(公告)日：2022-09-29

    申请号：US17596255

    申请日：2019-06-18

    申请人： LG ELECTRONICS INC.

    发明人： Chijun AHN ,  Jinmin KIM ,  Jaewook SONG ,  Jinsoo CHOI

    IPC分类号： H04B7/0413 ,  H04B7/0491 ,  H04W74/08 ,  H04W76/14 ,  H04W76/19

    摘要： The present invention relates to a data transmission device and reception device in a wireless AV system. The present specification discloses a wireless data reception device comprising: a communication unit configured to receive data relating to an image from a wireless data transmission device via a wireless channel; a display unit for outputting the image; a processor configured to execute a standby mode in which a wireless data reception device or the wireless data transmission device is deactivated, and a connection reestablishment mode in which, when the wireless data reception device and the wireless data transmission device are activated, a connection setup relating to the wireless data transmission device is performed; and a memory connected to the processor and configured to store data relating to the image according to a command of the processor.

    METHOD FOR MAINTAINING BEAMFORMING IN WIRELESS AV SYSTEM, AND WIRELESS DEVICE USING SAME
    7.
    发明申请
    METHOD FOR MAINTAINING BEAMFORMING IN WIRELESS AV SYSTEM, AND WIRELESS DEVICE USING SAME 有权

    公开(公告)号：US20220216897A1

    公开(公告)日：2022-07-07

    申请号：US17599419

    申请日：2019-05-07

    申请人： LG ELECTRONICS INC.

    发明人： Hyowon BAE ,  Jungwoo KIM ,  Jinmin KIM ,  Jaewook SONG ,  Jinsoo CHOI

    IPC分类号： H04B7/0408 ,  H04B17/309 ,  H04B7/0413 ,  H04B7/0491

    摘要： A method by which a first wireless device maintains beamforming in a wireless AV system, according to one embodiment of the present invention, comprises the steps of: transmitting a packet including a non-training field and a plurality of training fields to a second wireless device, wherein the non-training field is transmitted on the basis of the best sector combination from among a plurality of candidate sector combinations predetermined between the first wireless device and the second wireless device, and the plurality of training fields is transmitted on the basis of the plurality of candidate sector combinations; receiving candidate beam feedback information as a response to the plurality of training fields; determining, on the basis of the candidate beam feedback information, whether a channel change due to an obstacle occurs; and updating the best sector combination on the basis of the candidate beam feedback information when it is determined that the channel change occurs.

    COMMUNICATION SYSTEM AND METHODS USING VERY LARGE MULTIPLE-IN MULTIPLE-OUT (MIMO) ANTENNA SYSTEMS WITH EXTREMELY LARGE CLASS OF FAST UNITARY TRANSFORMATIONS
    8.
    发明申请
    COMMUNICATION SYSTEM AND METHODS USING VERY LARGE MULTIPLE-IN MULTIPLE-OUT (MIMO) ANTENNA SYSTEMS WITH EXTREMELY LARGE CLASS OF FAST UNITARY TRANSFORMATIONS 有权

    公开(公告)号：US20220209831A1

    公开(公告)日：2022-06-30

    申请号：US17695703

    申请日：2022-03-15

    申请人： Rampart Communications, Inc.

    发明人： Matthew Brandon ROBINSON

    IPC分类号： H04B7/0456 ,  H04B7/0491

    摘要： An apparatus includes a first communication device with multiple antennas, operably coupled to a processor and configured to access a codebook of transformation matrices. The processor generates a set of symbols based on an incoming data, and applies a permutation to each of the symbols to produce a set of permuted symbols. The processor transforms each of the permuted symbols based on at least one primitive transformation matrix, to produce a set of transformed symbols. The processor applies, to each of the transformed symbols, a precode matrix selected from the codebook of transformation matrices to produce a set of precoded symbols. The codebook of transformation matrices is accessible to a second communication device. The processor sends a signal to cause transmission, to the second communication device, of multiple signals, each representing a precoded symbol from the set of precoded symbols, each of the signals transmitted using a unique antenna from the plurality of antennas.

    MIMO TRAINING METHOD AND WIRELESS DEVICE
    9.
    发明申请
    MIMO TRAINING METHOD AND WIRELESS DEVICE 有权

    公开(公告)号：US20220110005A1

    公开(公告)日：2022-04-07

    申请号：US17550793

    申请日：2021-12-14

    申请人： Panasonic Corporation

    发明人： Lei Huang

    IPC分类号： H04W16/28 ,  H04B7/08 ,  H04B7/0491 ,  H04B7/06 ,  H01Q15/00 ,  H04B7/0413 ,  H01Q3/24

    摘要： An MIMO training method including performing transmission sector sweeping using an initiator including a plurality of transmitting antennas, selecting a set of at least one transmission sector for each of the transmitting antennas using a responder including a plurality of receiving antennas; performing reception sector sweeping using the initiator, selecting a set of at least one reception sector for each of the plurality of receiving antennas using the responder, performing beam combination training using the initiator; and selecting a determined number of sector pairs consisting of a transmission sector and a reception sector from among the selected set of transmission sectors and the selected set of reception sectors using the responder, wherein the transmitting antennas in the selected sector pairs differ from one another, and the receiving antennas in the selected sector pairs differ from one another.

    Cell-specific signal generation
    10.
    发明授权
    Cell-specific signal generation 有权

    公开(公告)号：US11153003B2

    公开(公告)日：2021-10-19

    申请号：US16071401

    申请日：2016-01-21

    申请人： Telefonaktiebolaget LM Ericsson (publ)

    发明人： Andreas Nilsson ,  David Astely ,  Niklas Jaldén

    IPC分类号： H04B7/10 ,  H04B7/0491 ,  H04B7/06

    摘要： There is provided mechanisms for generating cell-specific signals using an antenna array with dual-polarized antenna elements. A method is performed by a network device. The method comprises obtaining antenna weights for two sector-specific signals, each sector-specific signal giving rise to a respective sector-specific radiation pattern. The method comprises generating a first cell-specific signal, the first cell-specific signal giving rise to a first cell-specific radiation pattern, wherein antenna weights for the first cell-specific signal are determined such that the radiation pattern matches both sector-specific radiation patterns. The method comprises generating a second cell-specific signal, the second cell-specific signal giving rise to a radiation pattern identical to the first cell-specific radiation pattern, wherein antenna weights for the second cell-specific signal are identical to the antenna weights for the first cell-specific signal except that the first cell-specific signal and the second cell-specific signal have mutually orthogonal polarization.