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1. 发明申请

US20050101253A1 Communication method, receiver and base station 失效
标题翻译：通信方式，接收机和基站
公开(公告)号：US20050101253A1
公开(公告)日：2005-05-12
申请号：US10760532
申请日：2004-01-21
申请人： Kari Pajukoski , Esa Tiirola , Juha Ylitalo
发明人： Kari Pajukoski , Esa Tiirola , Juha Ylitalo
IPC分类号： H04B17/40 , H04B1/707 , H04B7/08 , H04B7/005
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.
摘要翻译：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，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，并通过将信号向量乘以其共轭转置向量，将装置（210,218）从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）。

2. 发明申请

US20070072551A1 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.

3. 发明授权

US07299017B2 Communication method, receiver and base station 失效
标题翻译：通信方式，接收机和基站
公开(公告)号：US07299017B2
公开(公告)日：2007-11-20
申请号：US10760532
申请日：2004-01-21
申请人： Kari Pajukoski , Esa Tiirola , Juha Ylitalo
发明人： Kari Pajukoski , Esa Tiirola , Juha Ylitalo
IPC分类号： H04B17/02
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.
摘要翻译：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）。

4. 发明授权

US06215814B1 RAKE receiver 有权
标题翻译： RAKE接收机
公开(公告)号：US06215814B1
公开(公告)日：2001-04-10
申请号：US09571138
申请日：2000-05-15
申请人： Juha Ylitalo , Peter Muszynski , Esa Tiirola , Toni Neffling
发明人： Juha Ylitalo , Peter Muszynski , Esa Tiirola , Toni Neffling
IPC分类号： H04B169
CPC分类号： H04B1/712 , H04B1/7115 , H04B7/0857 , H04B2201/709727
摘要： The invention relates to a RAKE receiver of a CDMA system using IRC, the receiver receiving a radio signal by using at least two antenna branches. In accordance with the invention a RAKE finger comprises: a weighting coefficient part for forming weighting coefficients maximizing the Signal-to-Interference-and-Noise Ratio for each antenna branch; a multiplier for multiplying a pilot part, despread by a despreader in each antenna branch, by a weighting coefficient; a multiplier for multiplying a data part, despread by a despreader in each antenna branch, by a weighting coefficient; an antenna branch summer for combining the despread pilot parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one pilot signal; an antenna branch summer for combining the despread data parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one data signal. In addition, the receiver comprises a RAKE finger summer for combining the data signals of the RAKE fingers operating by different delays to a sum data signal representing the received bits.
摘要翻译：本发明涉及使用IRC的CDMA系统的RAKE接收机，该接收机通过使用至少两个天线分支来接收无线电信号。根据本发明，RAKE手指包括：加权系数部分，用于形成最大化每个天线分支的信号与干扰与噪声比的加权系数; 乘法器，用于将由每个天线分支中的解扩器解扩的导频部分乘以加权系数; 乘法器，用于将由每个天线分支中的解扩器解扩的数据部分乘以加权系数; 一个天线分支加法器，用于将通过分离的天线分支接收并被乘以加权系数的解扩导频部分组合成一个导频信号; 天线分支加法器，用于将通过分离的天线分支接收并被乘以加权系数的解扩数据部分组合成一个数据信号。此外，接收机包括RAKE拨号加法器，用于将由不同延迟操作的RAKE指针的数据信号组合到表示所接收的比特的和数据信号。

5. 发明授权

US07203246B2 Method of estimating a channel, and a radio system 失效
标题翻译：估计频道的方法和无线电系统
公开(公告)号：US07203246B2
公开(公告)日：2007-04-10
申请号：US10329760
申请日：2002-12-27
申请人： Juha Ylitalo , Esa Tiirola , Matti Kiiski
发明人： Juha Ylitalo , Esa Tiirola , Matti Kiiski
IPC分类号： H04B7/02
CPC分类号： H04B7/0408 , H04B7/005 , H04B7/0617 , H04B7/0619 , H04L25/0228
摘要： The invention relates to a method of estimating a downlink channel in a radio system, and to a radio system. The method includes transmitting a common pilot signal and a user-specific pilot signal, of which channel estimates are formed. A channel estimate for the user-specific channel that has transmitted the user-specific pilot signal is formed of said channel estimates by selecting an appropriate scaling factor. The quality of the user-specific channel estimation and thus also the performance of the radio system are improved by the invention.
摘要翻译：本发明涉及一种估计无线电系统中的下行链路信道和无线电系统的方法。该方法包括发送其中形成信道估计的公共导频信号和用户特定导频信号。通过选择合适的缩放因子，通过所述信道估计来形成发送用户特定导频信号的用户专用信道的信道估计。本发明改进了用户专用信道估计的质量，从而提高了无线电系统的性能。

6. 发明授权

US06529545B2 Rake receiver 有权
标题翻译：耙式接收机
公开(公告)号：US06529545B2
公开(公告)日：2003-03-04
申请号：US09821931
申请日：2001-03-30
申请人： Esa Tiirola , Juha Ylitalo
发明人： Esa Tiirola , Juha Ylitalo
IPC分类号： H04B1707
CPC分类号： H04B7/0897 , H04B1/7115 , H04B1/7117 , H04B1/712 , H04B7/0851 , H04B7/0857 , H04B2201/70701 , H04B2201/709727
摘要： The invention relates to a Rake receiver of a CDMA system using IRC. The Rake receiver comprises at least two antenna branches, at least one Rake finger, and a delay estimator. The delay estimator comprises a despreader and an allocator for selecting at least one delay, and allocating a Rake finger for processing the signal component found by informing the Rake finger of the delay found. The delay estimator further comprises: a channel estimator, an interference estimator for generating an interference signal, a weighting coefficient part for providing each antenna branch with weighting coefficients maximizing the Signal-to-Interference-and-Noise Ratio, a multiplier for multiplying the pilot part by a weighting coefficient, and an antenna branch summer for combining the despread pilot parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one combined pilot signal, on which combined pilot signal the selection is based in the allocator.
摘要翻译：本发明涉及使用IRC的CDMA系统的Rake接收机。耙式接收机包括至少两个天线分支，至少一个耙指和延迟估计器。延迟估计器包括解扩器和用于选择至少一个延迟的分配器，并且分配耙指以处理通过向耙指通知发现的延迟所发现的信号分量。延迟估计器还包括：信道估计器，用于产生干扰信号的干扰估计器，用于向每个天线分支提供最大化信噪比噪声比的加权系数的加权系数部分，用于将导频部分乘以加权系数，以及天线分支加法器，用于将经由分离的天线分支接收并乘以加权系数的解扩导频部分组合到一个组合导频信号，组合导频信号选择基于分配器。

7. 发明授权

US09634388B2 Antenna beam 有权
公开(公告)号：US09634388B2
公开(公告)日：2017-04-25
申请号：US13122181
申请日：2008-10-13
申请人： Juha Ylitalo , Taavi Hirvonen
发明人： Juha Ylitalo , Taavi Hirvonen
IPC分类号： H01Q3/30 , H04B7/0408 , H01Q21/08 , H01Q3/40 , H01Q21/29
CPC分类号： H01Q3/30 , H01Q3/40 , H01Q21/08 , H01Q21/29 , H04B7/0408
摘要： A fixed phase shift for each of a plurality of radio frequency signal components directed to or received from a plurality of antenna elements is formed in a phase shifter. A desired antenna beam pattern with at least one grating lobe is formed on the basis of the phase-shifted radio frequency signal components of the antenna elements in a predefined antenna structure.

8. 发明申请

US20110188595A9 Simulation of Multi-Antenna Radio Channel 有权
标题翻译：多天线无线电信道仿真
公开(公告)号：US20110188595A9
公开(公告)日：2011-08-04
申请号：US12596230
申请日：2007-04-25
申请人： Juha Ylitalo
发明人： Juha Ylitalo
IPC分类号： H04B7/02
CPC分类号： H04B17/3912
摘要： 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.
摘要翻译：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。

9. 发明授权

US07894857B2 Method including a radio transmitter for improving radio link operation 有权
标题翻译：一种包括用于改善无线链路操作的无线电发射机的方法
公开(公告)号：US07894857B2
公开(公告)日：2011-02-22
申请号：US10209195
申请日：2002-08-01
申请人： Juha Ylitalo
发明人： Juha Ylitalo
IPC分类号： H04M1/00 , H04B1/00
CPC分类号： H04B7/0615
摘要： The invention relates to a method and a system for improving operation of a radio link in a wireless communication system, such as a cellular radio system, by modifying the radiation pattern of an antenna array on the downlink by means of the information obtained from the uplink. The method comprises determining the location of a receiver for transmission by means of an angular power spectrum (400), for example. Then the radiation pattern of a transmitting antenna array is shaped on the basis of the location information on the receiver by selecting a window function which provides the desired radiation pattern and by implementing the form of the window function by means of antenna element specific coefficients (502, 504).
摘要翻译：本发明涉及通过借助于从上行链路获得的信息修改下行链路上的天线阵列的辐射图案来改善诸如蜂窝无线电系统的无线通信系统中的无线电链路的操作的方法和系统。该方法包括例如通过角功率谱（400）来确定用于传输的接收机的位置。然后，通过选择提供期望的辐射图案的窗口函数并且通过天线元素特定系数（502）来实现窗口函数的形式，基于接收机上的位置信息对发射天线阵列的辐射图案进行成形，504）。

10. 发明授权

US07792206B2 Closed loop feedback system for improved down link performance 有权
标题翻译：闭环反馈系统，用于改善下行链路性能
公开(公告)号：US07792206B2
公开(公告)日：2010-09-07
申请号：US11068856
申请日：2005-03-02
申请人： Juha Ylitalo , Marcos Katz
发明人： Juha Ylitalo , Marcos Katz
IPC分类号： H04L1/02 , H04L27/00 , H03C7/00
CPC分类号： H04B7/0669 , H04B7/0408 , H04B7/0617 , H04B7/0634 , H04B7/0652 , H04L1/0618 , H04W52/42
摘要： A method includes receiving a reference signal and at least one delayed space-time encoded signal via at least two beams in which a time delay is associated with at least one of the at least two beams; determining channel state information based on the received reference signal and the received at least one delayed space-time encoded signal; and segmenting the channel state information into a plurality of channel state information segments.
摘要翻译：一种方法包括经由至少两个波束接收参考信号和至少一个延迟的空时编码信号，其中时间延迟与至少两个波束中的至少一个相关联; 基于所接收的参考信号和所接收的至少一个延迟的空时编码信号来确定信道状态信息; 以及将所述信道状态信息分割成多个信道状态信息段。

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