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103 条记录 (耗时 0.018 秒)

    New frame and signalling pattern structure for multi-carrier systems
    1.
    发明授权
    New frame and signalling pattern structure for multi-carrier systems 有权

    公开(公告)号：EP2512080B1

    公开(公告)日：2018-10-17

    申请号：EP12175819.7

    申请日：2008-11-24

    申请人： Sony Corporation

    发明人： Stadelmeier, Lothar ,  Schill, Dietmar ,  Robert, Jörg

    IPC分类号： H04L25/02 ,  H04L5/00 ,  H04L27/26

    CPC分类号： H04L27/2613 ,  H04L5/0007 ,  H04L5/005 ,  H04L25/0224 ,  H04L27/2626

    摘要： The present invention relates to a transmitting apparatus (54) for transmitting signals in a multi carrier system on the basis of a frame structure, each frame comprising at least two signalling patterns adjacent to each other in the frequency direction and at least one data pattern, said transmitting apparatus comprising frame forming means (59) adapted to arrange signalling data and pilot signals in each of said at least two signalling patterns in a frame, each signalling pattern having the same length, and to arrange data on frequency carriers of said at least one data pattern in a frame, transforming means (60) adapted to transform said signalling patterns and said data patterns from the frequency domain into the time domain in order to generate a time domain transmission signal, and transmitting means (61) adapted to transmit said time domain transmission signal. The present invention further relates to a corresponding transmitting method and a frame pattern for a multi carrier system.

    Improved transmit power allocation for adaptive multi-carrier multiplexing MIMO systems
    4.
    发明授权
    Improved transmit power allocation for adaptive multi-carrier multiplexing MIMO systems 有权
    用于自适应多载波多路复用MIMO系统的改进的发射功率分配

    公开(公告)号：EP2523361B1

    公开(公告)日：2017-03-22

    申请号：EP12005822.7

    申请日：2007-12-20

    申请人： Sony Corporation

    发明人： Schneider, Daniel ,  Stadelmeier, Lothar

    IPC分类号： H04B7/04 ,  H04W52/24 ,  H04W52/34

    CPC分类号： H04B7/043 ,  H04B7/0426 ,  H04L27/2601 ,  H04W52/241 ,  H04W52/346 ,  H04W72/04 ,  H04W76/00 ,  H04W88/08

    摘要： The present invention relates to transmit power allocation in multi-carrier, multiplexing MIMO communication systems. The present invention especially relates to a MIMO communication device, a method of assigning transmit power to two or more communication channels and a software program product. A multiple-input-multiple-output, MIMO, communication device according to the present invention comprises a link controller adapted to assign transmit power to two or more transmission channels, each of said transmission channels having preassigned a portion of transmit power for each of a group of subcarriers, said link controller being further adapted to assign, for each subcarrier of said group of subcarriers, at least part of the preassigned transmit power portion of a transmission channel that is not used for transmitting information at the subcarrier, to one or more transmission channels that are used for transmitting information at the subcarrier.

    Improved pilot allocation in multi-carrier systems with frequency notching
    7.
    发明授权
    Improved pilot allocation in multi-carrier systems with frequency notching 有权

    公开(公告)号：EP2129036B1

    公开(公告)日：2013-12-18

    申请号：EP08157226.5

    申请日：2008-05-29

    申请人： Sony Corporation

    发明人： Stadelmeier, Lothar ,  Schwager, Andreas

    IPC分类号： H04L5/00 ,  H04L25/02

    CPC分类号： H04L25/0226 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0236

    摘要： The present invention relates to a transmitting apparatus (62) for transmitting signals in a multi carrier system, in which pilot signals and data mapped on frequency carriers are transmitted in a transmission bandwidth, wherein a part of said transmission bandwidth is not used to transmit signals, comprising pilot signal mapping means (63) for mapping pilot signals onto selected frequency carriers according to a pilot pattern which is adapted for a channel estimation in a corresponding receiving apparatus, said pilot pattern enabling a channel estimation for frequency carriers next to said part of said transmission bandwidth which is not used to transmit signals. The present invention further relates to a corresponding method as well as a pilot pattern.

    Digital Signal Reception
    8.
    发明公开
    Digital Signal Reception 有权

    公开(公告)号：EP2426850A3

    公开(公告)日：2013-05-15

    申请号：EP11189941.5

    申请日：2009-06-03

    申请人： Sony Corporation

    发明人： Waller, Arthur Simon ,  Stadelmeier, Lothar ,  Schill, Dietmar ,  Gonzalez, Antonio Alarcon

    IPC分类号： H04L5/00 ,  H04L27/26

    CPC分类号： H04L27/2626 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0092 ,  H04L25/0226 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647 ,  H04L27/2666 ,  H04N5/4401 ,  H04N21/2362 ,  H04N21/2383 ,  H04N21/4345 ,  H04N21/4383 ,  H04N21/4385

    摘要： A digital signal receiver for receiving a required data stream from a digital signal carrying multiple data streams by modulation of respective frequency bands each within a respective one of a group of frequency channels, the frequency bands occupying no more than a predetermined receiver bandwidth less than or equal to the channel width;
    the digital signal carrying at respective frequency positions within each frequency channel and repeated from time to time, multiple instances of band information defining receiver parameters including at least the frequency bands corresponding to all of the data streams carried within that frequency channel, the instances being arranged so that any portion of the frequency channel equal in extent to the predetermined maximum bandwidth should include at least one instance of the band information;
    in which the data receiver is operable to align its receiver bandwidth with a channel so as to receive, from within that channel, an instance of the band information, and then in response to the received band information, to align its receiver bandwidth so as to encompass the frequency band of the required data stream.

    Communications system using beamforming
    9.
    发明公开
    Communications system using beamforming 有权
    共同体系统

    公开(公告)号：EP2560307A1

    公开(公告)日：2013-02-20

    申请号：EP12007535.3

    申请日：2010-12-29

    申请人： Sony Corporation

    发明人： Schwager, Andreas ,  Stadelmeier, Lothar ,  Schneider, Daniel

    IPC分类号： H04J11/00 ,  H04B3/54 ,  H04B3/50 ,  H04L5/14 ,  H04L25/02 ,  H04L25/03 ,  H04B7/04

    摘要： In a MIMO communications system (199) a first communications device (100) applies beamforming to a complete transmission packet including both synchronization data and either payload data or training symbols. A second communications device (200) evaluates the beamformed synchronization data and determines and transmits a feedback information indicating the minimum required synchronization data and/or a minimum number of training symbols. The first communications device (100) tailors the synchronization data and/or number of training symbols on the basis of the feedback information (s11). Beamforming the complete transmission packet facilitates also signal suppression at defined locations. When the channel properties change, the second communications device (200) may provide further channel state information to adapt beamforming in the first communications device (100) without transmission of not beamformed training symbols. The communications system may be a powerline telecommunications system.

    摘要翻译： 在MIMO通信系统（199）中，第一通信设备（100）将波束成形应用于包括同步数据和有效载荷数据或训练符号的完整传输分组。 第二通信设备（200）评估波束形成的同步数据，并确定并发送指示最小所需同步数据的反馈信息和/或最小数量的训练符号。 第一通信设备（100）基于反馈信息来定制同步数据和/或训练符号数（s11）。 波束形成完整的传输分组有助于在定义的位置处的信号抑制。 当信道属性改变时，第二通信设备（200）可以提供另外的信道状态信息以适应第一通信设备（100）中的波束成形，而不发送没有波束形成的训练符号。 通信系统可以是电力线电信系统。