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672 条记录 (耗时 0.031 秒)

    METHOD, APPARATUS AND COMPUTER PROGRAM FOR TRANSMITTING AND/OR RECEIVING SIGNALS ACROSS AN ELECTRIC POWER GRID
    1.
    发明授权
    METHOD, APPARATUS AND COMPUTER PROGRAM FOR TRANSMITTING AND/OR RECEIVING SIGNALS ACROSS AN ELECTRIC POWER GRID 有权

    公开(公告)号：EP2974053B1

    公开(公告)日：2018-12-05

    申请号：EP14709208.4

    申请日：2014-02-21

    申请人： Reactive Technologies Limited

    发明人： HUOMO, Heikki

    IPC分类号： H04B3/54

    CPC分类号： H04L27/20 ,  H04B3/542 ,  H04B2203/5404 ,  H04B2203/5412 ,  H04L27/2655 ,  H04W24/08

    摘要： Methods, apparatus and computer programs for transmitting and/or receiving information are described. Information encoded in a carrier signal comprising a modulation pattern superimposed on a grid frequency at which electricity flows in a synchronous area of an electric power grid, is decoded by measuring, at a receiving device, a characteristic relating to a frequency of electricity flowing in the electric power grid, accessing data indicative of one or more predetermined code patterns and performing a correlation process to determine a correlation between the modulation pattern and one of the one or more predetermined code patterns. The information is decoded on the basis of the determined correlation. This enables information to be easily transmitted within a synchronous area of the electric power grid.

    DATA DEMODULATION METHOD, USER EQUIPMENT, BASE STATION AND SYSTEM
    3.
    发明公开
    DATA DEMODULATION METHOD, USER EQUIPMENT, BASE STATION AND SYSTEM 审中-公开

    公开(公告)号：EP3273617A4

    公开(公告)日：2018-04-04

    申请号：EP15885155

    申请日：2015-08-14

    申请人： HUAWEI TECH CO LTD

    发明人： LI QIMING ,  LIU JIADI ,  HAN JING ,  LI ANJIAN

    IPC分类号： H04B7/08 ,  H04L25/02 ,  H04L27/26 ,  H04W4/02 ,  H04W84/00 ,  H04W88/02

    CPC分类号： H04L27/2655 ,  H04B7/08 ,  H04L25/02 ,  H04L25/0222 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2685 ,  H04L27/2695 ,  H04L2027/0026 ,  H04L2027/004 ,  H04W4/027 ,  H04W84/005 ,  H04W88/02

    摘要： Embodiments of the present invention relate to a data demodulation method, apparatus, and system. The method includes: obtaining notification information indicating that UE is in a high-speed moving state; performing time-frequency synchronization processing on first downlink data according to the notification information to obtain second downlink data, where an adjustment frequency in the time-frequency synchronization processing is greater than an adjustment frequency that is at a time when the UE is in a non-high-speed moving state, and an adjustment coefficient used for loop filtering is greater than an adjustment coefficient that is at the time when the UE is in the non-high-speed moving state; and performing demodulation processing on the second downlink data to obtain third downlink data, where in the demodulation processing, inter-TTIs filtering for a channel estimation is not performed, or a filtering coefficient as a weight of a current TTI for a channel estimation is greater than a filtering coefficient as a weight of a TTI that is at the time when the UE is in the non-high-speed moving state for a channel estimation. It can be learnt from the foregoing that, in the embodiments of the present invention, after that the UE is in the high-speed moving state is learnt by obtaining the notification information, the UE can achieve good downlink demodulation performance by using the demodulation method applicable to a high-speed scenario, improving a downlink data throughput of the UE.

    METHOD AND APPARATUS FOR PERFORMING SEARCHES WITH MULTIPLE RECEIVE DIVERSITY (RXD) SEARCH MODES
    4.
    发明授权
    METHOD AND APPARATUS FOR PERFORMING SEARCHES WITH MULTIPLE RECEIVE DIVERSITY (RXD) SEARCH MODES 有权
    使用多个接收分集（RXD）搜索模式执行搜索的方法和设备

    公开(公告)号：EP2436124B1

    公开(公告)日：2018-03-07

    申请号：EP10723877.6

    申请日：2010-05-28

    申请人： Qualcomm Incorporated

    发明人： HU, An-Swol, C. ,  JOOTAR, Jittra

    IPC分类号： H04B7/08 ,  H04W36/00 ,  H04B7/04

    CPC分类号： H04B7/086 ,  H04B7/0426 ,  H04B7/0871 ,  H04B7/0882 ,  H04B7/0885 ,  H04J11/0073 ,  H04L27/2655

    摘要： Techniques for performing searches by a user equipment (UE) equipped with multiple receive antennas are described. In an aspect, the UE may support multiple receive diversity (R×D) search modes. Each R×D search mode may be different from each remaining R×D search mode in how correlation is performed, how correlation results are combined, and/or how search results are reported for the multiple receive antennas. The UE may select an R×D search mode from among the multiple R×D search modes and may perform at least one step of a search in accordance with the selected R×D search mode. In another aspect, the UE may perform a search with interference cancellation to detect cell(s). The UE may determine multiple complex weights for multiple receive antennas such that signals from interfering cells can be attenuated. The UE may perform a search to detect cell(s) using the complex weights.

    SYNCHRONIZATION IN A BEAMFORMING SYSTEM
    5.
    发明公开
    SYNCHRONIZATION IN A BEAMFORMING SYSTEM 审中-公开

    公开(公告)号：EP3152845A4

    公开(公告)日：2018-02-28

    申请号：EP15843510

    申请日：2015-08-24

    申请人： MEDIATEK INC

    发明人： GUEY JIANN-CHING ,  SU CHAO-CHENG

    IPC分类号： H04B7/06 ,  H04L5/00 ,  H04L27/26

    CPC分类号： H04B7/0617 ,  H04J11/0079 ,  H04J2011/0096 ,  H04L5/0023 ,  H04L5/005 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2655

    摘要： A beamforming system synchronization architecture is proposed to allow a receiving device to synchronize to a transmitting device in time, frequency, and spatial domain in the most challenging situation with very high pathloss. A periodically configured time-frequency resource blocks in which the transmitting device uses the same beamforming weights for its control beam transmission to the receiving device. A pilot signal for each of the control beams is transmitted in each of the periodically configured time-frequency resource blocks. Pilot symbols are inserted into pilot structures and repeated for L times in each pilot structure. The L repetitions can be implemented by one or more Inverse Fast Fourier Transfers (IFFTs) with corresponding one or more cyclic prefix (CP) lengths.

    CHANNEL IDENTIFICATION IN A MIMO TELECOMMUNICATION SYSTEM
    10.
    发明公开
    CHANNEL IDENTIFICATION IN A MIMO TELECOMMUNICATION SYSTEM 审中-公开
    一种MIMO通信系统中的信道识别

    公开(公告)号：EP3257211A1

    公开(公告)日：2017-12-20

    申请号：EP16749581.1

    申请日：2016-01-26

    申请人： Commscope Technologies LLC

    发明人： LI, Zhao

    IPC分类号： H04L27/26 ,  H04L5/00

    CPC分类号： H04L5/005 ,  H04B7/0413 ,  H04L5/0023 ,  H04L27/26 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2692

    摘要： A channel identification system and method are provided to automatically identify ports of a base station (e.g., an eNodeB) to route downlink signals to appropriate access points in a telecommunication system. Primary and secondary synchronization signals may be identified in the downlink signals transmitted by the base station. A broadcast channel may be decoded for a downlink signal including the primary and secondary synchronization signals. Signal information may be used to extract a first cell-specific reference signal and generate a second cell-specific reference signal corresponding to one or more ports of the base station. The first and second cell-specific reference signals may be correlated to verify the identity of the channel corresponding to the ports of the base station.