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109 条记录 (耗时 0.028 秒)

    Communication method, receiver and base station
    21.
    发明申请
    Communication method, receiver and base station 审中-公开

    公开(公告)号：US20070072551A1

    公开(公告)日：2007-03-29

    申请号：US11605324

    申请日：2006-11-29

    申请人： Kari Pajukoski ,  Esa Tiirola ,  Juha Ylitalo

    发明人： Kari Pajukoski ,  Esa Tiirola ,  Juha Ylitalo

    IPC分类号： H04B1/00 ,  H04B15/00

    CPC分类号： H04B7/0857

    摘要： A multi-user receiver which uses at least two antenna elements and in which the influence of interference is reduced, the receiver comprises: means (200) for pre-filtering a wideband antenna signal, the pre-filtering means being determined on the basis of a spatial covariance matrix estimate, which spatial covariance matrix estimate is obtained from wideband antenna signals by sampling, arranging sampled values into a signal vector and by multiplying the signal vector by its conjugate transpose vector, means (210, 218) for removing the whitening from signals of predetermined users by using an inverse matrix of the matrix used in the whitening filter, means (202, 204, 206, 208, 210) for performing multi-path combining and multi-antenna combining.

    Data transmission method and transmitter
    22.
    发明申请
    Data transmission method and transmitter 审中-公开
    数据传输方式和发射机

    公开(公告)号：US20050175073A1

    公开(公告)日：2005-08-11

    申请号：US11098571

    申请日：2005-04-05

    申请人： Kari Pajukoski ,  Esa Tiirola

    发明人： Kari Pajukoski ,  Esa Tiirola

    IPC分类号： H04B1/707 ,  H04J11/00

    CPC分类号： H04B1/707 ,  H04B1/7115 ,  H04J13/004 ,  H04J13/0077 ,  H04J13/16

    摘要： A transceiver and a data transmission method in a telecommunication system are provided. The transmitter is arranged to transmit a WCDMA signal using one or more antennas, the signal comprising one or more code channels. The transmitter receives as input at least one encoded code channel. The transmitter comprises multipliers (308-314) for spreading each code channel with a spreading code, a combiner (324) for combining the spread signals and a converter (328) for performing a serial-to-parallel conversion on the combined signal, obtaining at least two parallel data streams, each parallel data stream corresponding to a given frequency band used in the transmission, and the transmitter is arranged to transmit the signal using simultaneously at least two different frequency bands.

    摘要翻译： 提供了一种电信系统中的收发信机和数据传输方法。 发射器被布置为使用一个或多个天线发射WCDMA信号，该信号包括一个或多个码信道。 发射机作为输入接收至少一个编码码信道。 发射机包括用于利用扩展码扩展每个码信道的乘法器（308-314），用于组合扩展信号的组合器（324）和用于对组合信号执行串并转换的转换器（328），获得 至少两个并行数据流，对应于在传输中使用的给定频带的每个并行数据流，并且发射机被布置为使用同时至少两个不同的频带来发射信号。

    Apparatus, methods, and computer program products providing limited use of Zadoff-Chu sequences in pilot or preamble signals
    24.
    发明授权
    Apparatus, methods, and computer program products providing limited use of Zadoff-Chu sequences in pilot or preamble signals 有权
    提供Zadoff-Chu序列在导频或前导信号中的有限使用的装置，方法和计算机程序产品

    公开(公告)号：US08681750B2

    公开(公告)日：2014-03-25

    申请号：US12083870

    申请日：2007-12-28

    申请人： Kari Hooli ,  Juha S. Korhonen ,  Kari Pajukoski ,  Esa Tiirola

    发明人： Kari Hooli ,  Juha S. Korhonen ,  Kari Pajukoski ,  Esa Tiirola

    IPC分类号： H04B7/216 ,  H04J3/00 ,  H04W4/00

    CPC分类号： H04L7/041

    摘要： In one, non-limiting exemplary embodiment, a method includes: obtaining a timing uncertainty window parameter; and selecting, using the obtained timing uncertainty window parameter, a preamble sequence including a cyclic shift of a Zadoff-Chu root sequence, wherein the cyclic shift is an allowed cyclic shift from a group of allowed cyclic shifts, wherein the allowed cyclic shifts have timing uncertainty windows with timing uncertainty window elements, wherein the timing uncertainty windows of the allowed cyclic shifts do not overlap with one other or with frequency cyclic shifts of +1 or −1 of the timing uncertainty window elements, and wherein the frequency cyclic shift of −1 of the timing uncertainty window elements of the allowed cyclic shifts does not overlap with the frequency cyclic shift of +1 of the timing uncertainty window elements of other allowed cyclic shifts.

    摘要翻译： 在一个非限制性示例性实施例中，一种方法包括：获得定时不确定性窗参数; 以及使用所获得的定时不确定度窗参数选择包括Zadoff-Chu根序列的循环移位的前导码序列，其中所述循环移位是从允许的循环移位组允许的循环移位，其中所述允许的循环移位具有定时 具有定时不确定性窗口元素的不确定窗口，其中允许的循环移位的定时不确定性窗口不与定时不确定窗口元素的+1或-1的彼此重叠或频率循环移位重叠，并且其中， 允许的循环移位的定时不确定窗口元素中的1个与其他允许的循环移位的定时不确定窗口元素的+1的频率循环移位不重叠。

    Adaptive frequency reuse scheme
    26.
    发明授权
    Adaptive frequency reuse scheme 有权
    自适应频率复用方案

    公开(公告)号：US08565161B2

    公开(公告)日：2013-10-22

    申请号：US11240529

    申请日：2005-10-03

    申请人： Kari Pajukoski ,  Esa Tiirola

    发明人： Kari Pajukoski ,  Esa Tiirola

    IPC分类号： H04W4/00

    CPC分类号： H04L27/2626 ,  H04B1/7103 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/02 ,  H04W16/04 ,  H04W16/12

    摘要： The present invention relates to a method and system for transmitting data in cellular network, wherein frequency reuse is proposed to be designed adaptive and utilized only only when needed, e.g., with small coding rates. The adaptive reuse can be obtained by using the conventional link adaptation approach. The invention can be easily applied to a Frequency Division Multiple Access (FDMA) system which consists of combination of localized and distributed FDMA. Thereby, better resistance against strong other cell interference can be provided.

    摘要翻译： 本发明涉及用于在蜂窝网络中传输数据的方法和系统，其中提出频率重用被设计为自适应的，并且仅在需要时使用，例如具有较小的编码率。 可以通过使用传统的链路自适应方法来获得自适应重用。 本发明可以容易地应用于由局部和分布式FDMA的组合组成的频分多址（FDMA）系统。 因此，可以提供更好的抵抗强的其他小区干扰的能力。

    METHOD AND APPARATUS FOR SYNCHRONIZING RESOURCES FOR COORDINATED NETWORK DEPLOYMENT
    28.
    发明申请
    METHOD AND APPARATUS FOR SYNCHRONIZING RESOURCES FOR COORDINATED NETWORK DEPLOYMENT 有权
    用于协调协调网络部署资源的方法和装置

    公开(公告)号：US20110103317A1

    公开(公告)日：2011-05-05

    申请号：US12610836

    申请日：2009-11-02

    申请人： Cassio Ribeiro ,  Olav Tirkkonen ,  Esa Tiirola ,  Kari Pajukoski

    发明人： Cassio Ribeiro ,  Olav Tirkkonen ,  Esa Tiirola ,  Kari Pajukoski

    IPC分类号： H04W72/00 ,  H04B7/208

    CPC分类号： H04W72/082 ,  H04W28/04 ,  H04W28/16 ,  H04W72/00 ,  H04W84/18 ,  H04W92/02

    摘要： In accordance with an example embodiment of the present invention, a method comprises mapping a first transmission channel to an existing channel of a network element; switching the network element to a secondary communication mode which is one of a secondary transmission mode and a secondary receiving mode; signaling at least one neighbor network element in the secondary communication mode to associate the network element with the at least one neighbor network element; and receiving a first signal on the mapped first transmission channel from the at least one associated network element.

    摘要翻译： 根据本发明的示例性实施例，一种方法包括将第一传输信道映射到网元的现有信道; 将网元切换到作为二次发送模式和辅助接收模式之一的辅助通信模式; 在所述辅助通信模式中发信号通知至少一个相邻网络元件以将所述网络元件与所述至少一个相邻网络元件相关联; 以及从所述至少一个相关联的网络元件在所映射的第一传输信道上接收第一信号。

    Interference cancellation unit and interference cancellation method
    29.
    发明授权
    Interference cancellation unit and interference cancellation method 有权
    干扰消除单元和干扰消除方法

    公开(公告)号：US07764705B2

    公开(公告)日：2010-07-27

    申请号：US11808902

    申请日：2007-06-13

    申请人： Esa Tiirola ,  Kari Pajukoski

    发明人： Esa Tiirola ,  Kari Pajukoski

    IPC分类号： H04L12/28 ,  H04B1/10

    CPC分类号： H04L5/023 ,  H04L25/0224 ,  H04L25/03159 ,  H04L2025/03414

    摘要： An interference cancellation unit having as an input two or more IFDMA signals comprising a multitude of frequency bins is provided. The unit comprises a channel estimator for determining a channel estimate from the input signals, a matrix calculator for determining an error covariance matrix of the input signals, and an estimator for determining weight factors on the basis of the channel estimate and the error covariance matrix and weighting and combining the input signals. The unit further comprises a preprocessor for removing unwanted frequency bins from the input signals prior to the error covariance calculation.

    摘要翻译： 提供具有作为输入的两个或更多个包括多个频率仓的IFDMA信号的干扰消除单元。 该单元包括用于从输入信号确定信道估计的信道估计器，用于确定输入信号的误差协方差矩阵的矩阵计算器，以及用于基于信道估计和误差协方差矩阵确定权重因子的估计器，以及 加权和组合输入信号。 该单元还包括预处理器，用于在误差协方差计算之前从输入信号中去除不想要的频率仓。

    Multi-code precoding for sequence modulation
    30.
    发明申请
    Multi-code precoding for sequence modulation 审中-公开
    用于序列调制的多码预编码

    公开(公告)号：US20080310547A1

    公开(公告)日：2008-12-18

    申请号：US12157113

    申请日：2008-06-06

    申请人： Esa Tiirola ,  Kari Hooli ,  Kari Pajukoski

    发明人： Esa Tiirola ,  Kari Hooli ,  Kari Pajukoski

    IPC分类号： H04L27/00

    CPC分类号： H04L27/2615

    摘要： In accordance with an exemplary embodiment of the invention a method is provided to reduce a peak to average ratio with a multi-code transmission. The method includes precoding a plurality of symbols, modulating the precoded plurality of symbols using multi-codes including a plurality of orthogonal codes, and transmitting a signal comprising the modulated precoded plurality of symbols, where precoding is performed to reduce the peak to average ratio of the transmitted signal.

    摘要翻译： 根据本发明的示例性实施例，提供了一种通过多码传输降低峰均比的方法。 该方法包括对多个符号进行预编码，使用包括多个正交码的多码调制预编码的多个符号，以及发送包括经调制的预编码的多个符号的信号，其中执行预编码以降低峰均比 发送信号。