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。

公开(公告)号：US08565162B2

公开(公告)日：2013-10-22

申请号：US12077233

申请日：2008-03-18

申请人： Esa Tiirola ,  Kari Pajukoski ,  Matti Kiiski ,  Frank Frederiksen ,  Troels E. Kolding ,  Bernhard Raaf

发明人： Esa Tiirola ,  Kari Pajukoski ,  Matti Kiiski ,  Frank Frederiksen ,  Troels E. Kolding ,  Bernhard Raaf

IPC分类号： H04W4/00 ,  H04B3/36 ,  H04W72/00

CPC分类号： H04L1/12 ,  H04L1/0027 ,  H04L1/1854 ,  H04W72/0406

摘要： In one exemplary embodiment of the invention, a method including: determining whether first allocation information has been transmitted from a first device towards a second device in a wireless communication system; and transmitting a message including transmittal information and second allocation information from the first device towards the second device, wherein the transmittal information corresponds to the determined transmittal of the first allocation information. In another exemplary embodiment of the invention, a method including: detecting whether a first signal is received on a dedicated resource of a wireless communication system; detecting whether a second signal is received on a shared resource of the wireless communication system; and determining, based on a detection outcome for the first signal and a detection outcome for the second signal, whether at least one allocation has failed.

摘要翻译： 在本发明的一个示例性实施例中，一种方法包括：确定在无线通信系统中第一分配信息是否已经从第一设备发送到第二设备; 以及从所述第一设备向所述第二设备发送包括传送信息和第二分配信息的消息，其中所述传送信息对应于所确定的所述第一分配信息的传送。 在本发明的另一示例性实施例中，一种方法包括：检测在无线通信系统的专用资源上是否接收到第一信号; 检测在所述无线通信系统的共享资源上是否接收到第二信号; 以及基于所述第一信号的检测结果和所述第二信号的检测结果确定至少一个分配是否已经失败。

公开(公告)号：US20080232321A1

公开(公告)日：2008-09-25

申请号：US12077233

申请日：2008-03-18

申请人： Esa Tiirola ,  Kari Pajukoski ,  Matti Kiiski ,  Frank Frederiksen ,  Troels E. Kolding ,  Bernhard Raaf

发明人： Esa Tiirola ,  Kari Pajukoski ,  Matti Kiiski ,  Frank Frederiksen ,  Troels E. Kolding ,  Bernhard Raaf

IPC分类号： H04L12/56 ,  H04Q7/20

CPC分类号： H04L1/12 ,  H04L1/0027 ,  H04L1/1854 ,  H04W72/0406

摘要： In one exemplary embodiment of the invention, a method including: determining whether first allocation information has been transmitted from a first device towards a second device in a wireless communication system; and transmitting a message including transmittal information and second allocation information from the first device towards the second device, wherein the transmittal information corresponds to the determined transmittal of the first allocation information. In another exemplary embodiment of the invention, a method including: detecting whether a first signal is received on a dedicated resource of a wireless communication system; detecting whether a second signal is received on a shared resource of the wireless communication system; and determining, based on a detection outcome for the first signal and a detection outcome for the second signal, whether at least one allocation has failed.

摘要翻译： 在本发明的一个示例性实施例中，一种方法包括：确定在无线通信系统中第一分配信息是否已经从第一设备发送到第二设备; 以及从所述第一设备向所述第二设备发送包括传送信息和第二分配信息的消息，其中所述传送信息对应于所确定的所述第一分配信息的传送。 在本发明的另一示例性实施例中，一种方法包括：检测在无线通信系统的专用资源上是否接收到第一信号; 检测在所述无线通信系统的共享资源上是否接收到第二信号; 以及基于所述第一信号的检测结果和所述第二信号的检测结果确定至少一个分配是否已经失败。

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.

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。

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）。

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）。

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。

公开(公告)号：US08923190B2

公开(公告)日：2014-12-30

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： H04W84/18 ,  H04W72/08 ,  H04W28/16 ,  H04W28/04 ,  H04W72/00 ,  H04W92/02

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。

公开(公告)号：US08599940B2

公开(公告)日：2013-12-03

申请号：US11904509

申请日：2007-09-26

申请人： Kari Pajukoski ,  Esa Tiirola

发明人： Kari Pajukoski ,  Esa Tiirola

IPC分类号： H04L27/28

CPC分类号： H04L5/0016 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/003 ,  H04L5/0053 ,  H04L27/0008 ,  H04L27/2636

摘要： A cyclically shifted sequence is provided. Information is modulated using a selected modulation coding scheme, multiplied with the cyclically shifted sequence, and mapped into at least one subcarrier and transmitting on an uplink.

摘要翻译： 提供了循环移位的顺序。 使用选择的调制编码方案来调制信息，并与循环移位序列相乘，并映射到至少一个子载波并在上行链路上进行发送。