公开(公告)号：US07844010B2

公开(公告)日：2010-11-30

申请号：US11068855

申请日：2005-03-02

Applicant: Juha Ylitalo ,  Marcos Katz

Inventor： Juha Ylitalo ,  Marcos Katz

IPC: H04B7/02

CPC classification number: H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

Abstract: A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.

Abstract translation: 一种方法包括从与第一站相关联的天线系统接收至少两个时空编码信号，基于接收的空时编码信号确定复信道状态信息，以及将复信道状态信息发送到第一站。 在替代实施例中，一种方法包括在多波束天线阵列的各个波束中发送至少两个空时编码信号，在第二站测量每个空间 - 时间编码信号的信道脉冲响应，并发送 从第二站到第一站的选定的一组最小衰减信号。 多波束天线阵列与第一台相关联。 波束发送嵌入在每个相应的空时编码信号中的签名代码，并且签名代码是正交的，使得第二站可以分离并测量与每个空时编码信号相对应的信道脉冲响应。

公开(公告)号：US07299017B2

公开(公告)日：2007-11-20

申请号：US10760532

申请日：2004-01-21

Applicant: Kari Pajukoski ,  Esa Tiirola ,  Juha Ylitalo

Inventor： Kari Pajukoski ,  Esa Tiirola ,  Juha Ylitalo

IPC: H04B17/02

CPC classification number: H04B7/0857

Abstract: 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.

Abstract translation: 一种使用至少两个天线元件并且其中减少了干扰影响的多用户接收机，所述接收机包括：用于对宽带天线信号进行预滤波的装置（200），所述预滤波装置基于 空间协方差矩阵估计，其通过采样从宽带天线信号获得空间协方差矩阵估计，将采样值排列到信号向量中，并将信号向量乘以其共轭转置向量，用于去除白化的装置（210,218） 通过使用在白化滤波器中使用的矩阵的逆矩阵来预定用户的信号，用于执行多路径组合和多天线组合的装置（202,204,206,208,210）。

公开(公告)号：US20070155331A1

公开(公告)日：2007-07-05

申请号：US11637832

申请日：2006-12-13

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04B1/00 ,  H04B15/00

CPC classification number: H04W52/42 ,  H01Q3/26 ,  H04B7/0452 ,  H04B7/0617 ,  H04W52/346

Abstract: A method for determining weight factors of antenna beams, the method comprising using at least one directional antenna beam implemented with an antenna array to establish a radio link, forming a radio cell with the antenna beam, dividing the radio cell into at least two different cells by dividing the antenna beam, selecting weight factors of antenna elements of the antenna array such that the antenna element specific sums of weight factors of a radio cell formed with the antenna array and corresponding weight factors of at least one, second radio cell formed with the same antenna array are at least substantially equal within predetermined limits in order to achieve a predetermined power balance between different antenna elements. (FIG. 7)

Abstract translation: 一种用于确定天线波束的权重因子的方法，所述方法包括使用由天线阵列实现的至少一个定向天线波束建立无线电链路，与天线波束形成无线电小区，将无线电小区划分成至少两个不同的小区 通过分割天线波束，选择天线阵列的天线元件的重量因子，使得天线元件与天线阵列形成的无线电单元的加权因子的特定和和与形成有天线阵列的至少一个第二无线电单元的相应权重因子 相同的天线阵列在预定限度内至少基本相等，以便实现不同天线元件之间的预定功率平衡。 （图7）

公开(公告)号：US07203519B2

公开(公告)日：2007-04-10

申请号：US10294689

申请日：2002-11-15

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04B1/38

CPC classification number: H04B7/10 ,  H04B7/0408

Abstract: A method and an apparatus for implementing the method for providing transmission of an uninterrupted pilot signal covering the whole antenna sector. The method uses at least two primary pilot signals orthogonal relative to each other in a radio system comprising adjacent directional antenna beams. In the method, primary pilot signals are transmitted in main antenna beams of the antenna pattern in such a way that adjacent main antenna beams have primary pilot signals orthogonal relative to each other, and the widths and directions of the antenna beams are adjusted in such a way that the beams having the same primary pilot signal do not overlap.

Abstract translation: 一种实现用于提供覆盖整个天线扇区的不间断导频信号的传输的方法和装置。 该方法在包括相邻定向天线波束的无线电系统中使用彼此正交的至少两个主导频信号。 在该方法中，主导频信号以天线图形的主天线波束的方式被发送，使得相邻的主天线波束具有相对于彼此正交的主导频信号，并且天线波束的宽度和方向被调整为 具有相同主导频信号的波束不重叠的方式。

公开(公告)号：US06980832B1

公开(公告)日：2005-12-27

申请号：US10129712

申请日：2000-11-06

Applicant: Juha Ylitalo ,  Roman Pichna

Inventor： Juha Ylitalo ,  Roman Pichna

IPC: H04B7/005 ,  H04B7/02 ,  H04B7/04 ,  H04B7/10 ,  H04K3/00

CPC classification number: H04B7/022 ,  H04B7/0408 ,  H04B7/0491 ,  H04B7/10 ,  H04W52/42

Abstract: In the described system, one or more base stations transmit a signal to a mobile station. The signal is transmitted using polarisation diversity, whereby the signal is transmitted in one direction using two signal beams, each signal beam being differently polarised. A method of beam-hoping may be employed whereby the polarisation of the transmitted beams during hand off is varied according to predefined sequence. The sequence may be determined according to the data loading within the respective transmission cells. Also disclosed is a method of soft or softer hand off within a wireless communication system where the total number of signal beams transmitted from two base stations to a single mobile station during hand off is kept constant.

Abstract translation: 在所描述的系统中，一个或多个基站向移动台发送信号。 使用极化分集发送信号，由此使用两个信号光束在一个方向上发射信号，每个信号光束是不同的极化的。 可以采用波束希望的方法，从而根据预定义的顺序改变切换期间发射波束的极化。 该序列可以根据各个传输小区内的数据加载来确定。 还公开了一种在无线通信系统内的软或软切换的方法，其中在切换期间从两个基站发射到单个移动台的信号波束的总数保持恒定。

公开(公告)号：US20050157684A1

公开(公告)日：2005-07-21

申请号：US11068856

申请日：2005-03-02

Applicant: Juha Ylitalo ,  Marcos Katz

Inventor： Juha Ylitalo ,  Marcos Katz

IPC: H04J15/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/10 ,  H04B7/26 ,  H04L1/02 ,  H04L1/06 ,  H04W52/42 ,  H04Q7/00

CPC classification number: H04B7/0669 ,  H04B7/0408 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0652 ,  H04L1/0618 ,  H04W52/42

Abstract: A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.

Abstract translation: 一种方法包括从与第一站相关联的天线系统接收至少两个时空编码信号，基于接收的空时编码信号确定复信道状态信息，以及将复信道状态信息发送到第一站。 在替代实施例中，一种方法包括在多波束天线阵列的各个波束中发送至少两个空时编码信号，在第二站测量每个空间 - 时间编码信号的信道脉冲响应，并发送 从第二站到第一站的选定的一组最小衰减信号。 多波束天线阵列与第一台相关联。 波束发送嵌入在每个相应的空时编码信号中的签名代码，并且签名代码是正交的，使得第二站可以分离并测量与每个空时编码信号相对应的信道脉冲响应。

公开(公告)号：US06697640B1

公开(公告)日：2004-02-24

申请号：US09612762

申请日：2000-07-10

Applicant: Marcus Katz ,  Juha Ylitalo

Inventor： Marcus Katz ,  Juha Ylitalo

IPC: H04M100

CPC classification number: H04W16/00 ,  H04W16/28

Abstract: A method of directional radio communication between a first station and a second station comprises the steps of transmitting signals from the second station to the first station via a radio channel. At least one parameter indicative of the speed of change in the radio channel is measured. A rate with which the second station should send signals to the first station is determined from the at least one parameter and the second station sends signals to the first station with at least the rate.

Abstract translation: 第一站和第二站之间的定向无线电通信的方法包括以下步骤：经由无线信道从第二站向第一站发送信号。 测量指示无线电信道中的变化速度的至少一个参数。 从所述至少一个参数确定所述第二站应向所述第一站发送信号的速率，并且所述第二站至少以所述速率向所述第一站发送信号。

公开(公告)号：US08565193B2

公开(公告)日：2013-10-22

申请号：US13123929

申请日：2008-10-16

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04W4/00

CPC classification number: H01Q3/26 ,  H01Q1/246 ,  H04B7/0617

Abstract: The invention relates to a method of transmitting data in a communications system. The invention comprises: receiving from a user an uplink signal using multiple narrow antenna beams; measuring beam-specific pilot signal powers from the uplink signal for all the beams; and using the measured pilot signal powers to determine which one or ones of the downlink beams is to be used for a downlink signal for the user.

Abstract translation: 本发明涉及一种在通信系统中传输数据的方法。 本发明包括：从用户接收使用多个窄天线波束的上行链路信号; 测量来自所有波束的上行链路信号的波束特定导频信号功率; 以及使用所测量的导频信号功率来确定所述下行链路波束中的哪一个或哪个将用于所述用户的下行链路信号。

公开(公告)号：US08451924B2

公开(公告)日：2013-05-28

申请号：US12596230

申请日：2007-04-25

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04B7/02

CPC classification number: H04B17/3912

Abstract: A radio channel simulation system comprises a plurality of input buses for receiving a beam-specific transmit signal. A transformation module transforms a channel model from antenna domain to beam domain by using a transformation algorithm and beam forming weights. The channel model represented in the beam domain is inputted into a processing module which processes the beam-specific transmit signals according to the channel model represented in the beam domain.

Abstract translation: 无线电信道模拟系统包括用于接收波束专用发射信号的多个输入总线。 变换模块通过使用变换算法和波束形成权重将信道模型从天线域转换为波束域。 在波束域中表示的信道模型被输入到根据在波束域中表示的信道模型来处理波束特定发送信号的处理模块。

公开(公告)号：US08270375B2

公开(公告)日：2012-09-18

申请号：US12602583

申请日：2007-06-28

Applicant: Juha Ylitalo

Inventor： Juha Ylitalo

IPC: H04W8/00

CPC classification number: H04B7/0617 ,  H01Q3/26 ,  H01Q21/08 ,  H04B7/0413 ,  H04B7/0669 ,  H04B7/0689 ,  H04B7/0697

Abstract: An apparatus of a multi-antenna telecommunication system includes a beam forming unit configured to form at least two antenna beams, and a signal feeding unit connected to the beam forming unit and configured to feed beam-specific data streams to the beam forming unit. The beam-specific data streams are allocated to one and the same transceiver of the wireless telecommunication system, and each data stream includes independently and separately encoded data signals.

Abstract translation: 多天线电信系统的装置包括被配置为形成至少两个天线波束的波束形成单元和连接到波束形成单元并被配置为将波束特定数据流馈送到波束形成单元的信号馈送单元。 光束专用数据流被分配给无线电信系统的同一个收发器，并且每个数据流包括独立和分别编码的数据信号。