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1. 发明申请

US20110222629A1 PRE-CODING FOR DOWNLINK CONTROL CHANNEL 审中-公开
标题翻译：下行控制通道预编码
公开(公告)号：US20110222629A1
公开(公告)日：2011-09-15
申请号：US13130280
申请日：2008-11-20
申请人： Lars Erik Lindh , Timo Eric Roman , Juha Heiskala , Tommi Tapani Koivisto
发明人： Lars Erik Lindh , Timo Eric Roman , Juha Heiskala , Tommi Tapani Koivisto
IPC分类号： H04W4/00
CPC分类号： H04L1/0001 , H04B7/0615 , H04B7/0689
摘要： Precoding information is provided (implicitly or explicitly) to a particular user equipment UE. Closed-loop spatial coding for a control channel is selected for the particular user equipment, and at least one control channel element CCE is determined within the particular user equipment's search space of the control channel that is associated with the provided precoding information. The determined at least one CCE is spatially encoded using the provided precoding information to schedule radio resources for the particular user equipment. The UE determines a search space for a control channel, and from received radio resource control signaling determines at least one CCE within the search space that is to be encoded with closed-loop spatial coding. The UE decodes the determined at least one CCE within the search space using a closed-loop spatial decoding with precoding information associated with the at least one CCE to find radio resources scheduled for the particular UE.
摘要翻译：向特定用户设备UE（隐式地或明确地）提供预编码信息。为特定用户设备选择用于控制信道的闭环空间编码，并且在与所提供的预编码信息相关联的控制信道的特定用户设备的搜索空间内确定至少一个控制信道单元CCE。使用所提供的预编码信息对所确定的至少一个CCE进行空间编码，以调度用于特定用户设备的无线电资源。 UE确定用于控制信道的搜索空间，并且从接收到的无线电资源控制信令确定要在空间中进行编码的闭环空间编码中的至少一个CCE。 UE使用具有与至少一个CCE相关联的预编码信息的闭环空间解码来解码搜索空间内确定的至少一个CCE，以找到为特定UE调度的无线电资源。

2. 发明授权

US06298035B1 Estimation of two propagation channels in OFDM 有权
标题翻译： OFDM中两个传播信道的估计
公开(公告)号：US06298035B1
公开(公告)日：2001-10-02
申请号：US09468313
申请日：1999-12-21
申请人： Juha Heiskala
发明人： Juha Heiskala
IPC分类号： H04K110
CPC分类号： H04L27/2647 , H04L25/0204 , H04L2025/03414 , H04L2025/03624
摘要： A method and apparatus for estimating separate channel frequency responses for two channels in an orthogonal frequency division multiplexing system with two transmitters is disclosed. The channel frequency responses are estimated using specifically selected training symbols that are broadcast from the two transmitters. The training symbols are specifically selected so as to improve the estimation of the channel frequency responses for each channel, while requiring the same amount of training symbols as in an estimation of the channel frequency response of a single channel.
摘要翻译：公开了一种用于在具有两个发射机的正交频分复用系统中估计用于两个信道的单独信道频率响应的方法和装置。使用从两个发射机广播的特定选择的训练符号来估计信道频率响应。具体地选择训练符号，以便改进每个信道的信道频率响应的估计，同时要求与单个信道的信道频率响应的估计中相同量的训练符号。

3. 发明申请

US20080049863A1 Apparatus, method and computer program product providing soft decision generation with lattice reduction aided MIMO detection 审中-公开
标题翻译：提供具有格子简化辅助MIMO检测的软判决生成的装置，方法和计算机程序产品
公开(公告)号：US20080049863A1
公开(公告)日：2008-02-28
申请号：US11511927
申请日：2006-08-28
申请人： Juha Heiskala
发明人： Juha Heiskala
IPC分类号： H04L1/02
CPC分类号： H04L1/06 , H04L25/03318 , H04L27/2647 , H04L2025/03426
摘要： A circuit that includes an input for coupling to a MIMO signal received from a channel to compute a change of basis matrix T and a reduced lattice basis matrix HT, to form a list L of points used for soft decision calculation using columns of the matrix HT and to perform MIMO detection for each point in the list L. The circuit further includes an output to output a list C of constellation points to a unit for use in to calculating soft bit decisions. The list L may include a received point r and a set of points that are formed by adding to the point r a column of the matrix HT multiplied by +1, −1, +i, or −i, or it may be formed by performing hard MIMO detection for the received point r, and adding the columns of HT to the to the hard decision point, or it may be formed by using a hard decision estimate of transmitted vector x and adding multiplied columns of the matrix T to the vector x.
摘要翻译：一种电路，包括用于耦合到从信道接收的MIMO信号的输入，以计算基矩阵T的变化和减小的格基基矩阵HT，以形成用于使用矩阵HT的列的软判决计算的点的列表L 并且对列表L中的每个点执行MIMO检测。该电路还包括输出，用于将星座点的列表C输出到用于计算软比特决定的单元。列表L可以包括通过将矩阵HT的乘积列乘以+1，-1，+ i或-i而形成的接收点r和一组点，或者可以通过执行对于接收点r进行硬MIMO检测，并将HT的列相加到硬判决点，或者可以通过使用传输向量x的硬判决估计并将矩阵T的相乘列加到向量x 。

4. 发明申请

US20080268887A1 Multipoint data transmission 有权
标题翻译：多点数据传输
公开(公告)号：US20080268887A1
公开(公告)日：2008-10-30
申请号：US12072638
申请日：2008-02-26
申请人： Kaj Jansen , Markku J. Heikkila , Ulo Parts , Juha Heiskala , Zoltan Safar
发明人： Kaj Jansen , Markku J. Heikkila , Ulo Parts , Juha Heiskala , Zoltan Safar
IPC分类号： H04B7/26 , H04B7/005
CPC分类号： H04B7/022
摘要： A semi-single frequency network (SFN) concept is presented. According to the SFN concept, the same data signal is transmitted from multiple base stations to a mobile terminal simultaneously on the same frequency band. Accordingly, the transmitted signals are combined in the radio channel and the mobile terminal experiences the transmitted signals as one signal propagated through a multipath channel. Additionally, each base station transmits a base station specific pilot signal. The mobile terminal carries out a channel estimation procedure for each received pilot signal and combines the channel estimates to obtain information how to equalize the received data signal. Then, the mobile terminal calculates equalization weights from the combined channel estimates and equalizes the received data signal.
摘要翻译：提出了一种半单频网络（SFN）概念。根据SFN概念，相同的数据信号在同一频带上同时从多个基站发送到移动终端。因此，所发送的信号在无线电信道中组合，并且移动终端经历作为通过多径信道传播的一个信号的发送信号。另外，每个基站发送基站专用导频信号。移动终端对每个接收到的导频信号执行信道估计过程，并组合信道估计以获得如何均衡接收的数据信号的信息。然后，移动终端从组合信道估计中计算均衡权重，并对接收到的数据信号进行均衡。

5. 发明申请

US20070280386A1 System And Method For Precoding In A Multiple Input Multiple-Output (Mimo) System 失效
标题翻译：多输入多输出（Mimo）系统中预编码的系统和方法
公开(公告)号：US20070280386A1
公开(公告)日：2007-12-06
申请号：US11573940
申请日：2005-08-19
申请人： Nico Waes , Hua Zhang , Juha Heiskala , Victor Stolpman , Jian Zhang , Tony Reid , Jae Son
发明人： Nico Waes , Hua Zhang , Juha Heiskala , Victor Stolpman , Jian Zhang , Tony Reid , Jae Son
IPC分类号： H04B7/10
CPC分类号： H04L1/0637 , H04B7/0413 , H04B7/0456 , H04B7/0617 , H04B7/0619 , H04L1/0675
摘要： A network entity in a multi-transmit antenna system, such as a transmitting or receiving entity, includes a component such as a pre-coder or a receiver, and is configured for full-spatial-rate coding data. The network entity is capable of providing a full-spatial-rate codebook having been designed by selecting an underlying partial-spatial-rate codebook designed for a system configured for partial-spatial-rate coding data. The full-spatial-rate codebook can then be designed in a manner including defining the full-spatial-rate codewords based upon partial-spatial-rate codewords of the partial-spatial rate codebook and basis vectors of a null space of the respective partial-spatial-rate codewords in a multidimensional vector space. The network entity can also be capable of selecting codewords of the codebook in accordance with a sub-space tracking method whereby the codewords of the codebook can be selected in a manner that exploits correlations therebetween.
摘要翻译：诸如发送或接收实体的多发射天线系统中的网络实体包括诸如预编码器或接收机的组件，并且被配置用于全空间速率编码数据。网络实体能够提供通过选择为配置用于部分空间速率编码数据的系统而设计的底层部分空间速率码本来设计的全空间速率码本。然后可以以包括基于部分空间速率码本的部分空间率码字定义全空间速率码字的方式来设计全空间速率码本以及各部分空间速率码本的零空间的基向量，多维向量空间中的空间速率码字。网络实体还可以根据子空间跟踪方法来选择码本的码字，由此可以以利用它们之间的相关性的方式来选择码本的码字。

6. 发明授权

US07106802B1 Apparatus, and associated method, for forming a modulated signal utilizing OTD and TCM techniques 有权
标题翻译：用于使用OTD和TCM技术形成调制信号的装置和相关方法
公开(公告)号：US07106802B1
公开(公告)日：2006-09-12
申请号：US09672753
申请日：2000-09-28
申请人： Juha Heiskala , John Terry
发明人： Juha Heiskala , John Terry
IPC分类号： H04L5/12 , H04L1/02
CPC分类号： H04L1/006 , H04L1/0618
摘要： Apparatus, and an associated method, for facilitating communication of data upon a communication channel which exhibits fading. Orthogonal transmit diversity techniques and trellis-coded modulation techniques are utilized to form a signal permitting the communication of data at high data rates while maintaining spectral efficiency, good error rate performance, without excessive computational complexity. The apparatus and associated method is advantageously implemented in a WLAN (Wireless Local Area Network) constructed pursuant to the IEEE 802.11 standard.
摘要翻译：装置和相关方法，用于促进在呈现衰落的通信信道上的数据通信。正交发射分集技术和网格编码调制技术被用来形成允许以高数据速率通信数据的信号，同时保持频谱效率，良好的误码率性能，而不会有过多的计算复杂度。该装置和相关联的方法有利地在根据IEEE 802.11标准构建的WLAN（无线局域网）中实现。

7. 发明授权

US08908611B2 Multipoint data transmission 有权
标题翻译：多点数据传输
公开(公告)号：US08908611B2
公开(公告)日：2014-12-09
申请号：US12072638
申请日：2008-02-26
申请人： Kaj Jansen , Markku J. Heikkilä , Ulo Parts , Juha Heiskala , Zoltan Safar
发明人： Kaj Jansen , Markku J. Heikkilä , Ulo Parts , Juha Heiskala , Zoltan Safar
IPC分类号： H04B7/26 , H04B7/02
CPC分类号： H04B7/022
摘要： A semi-single frequency network (SFN) concept is presented. According to the SFN concept, the same data signal is transmitted from multiple base stations to a mobile terminal simultaneously on the same frequency band. Accordingly, the transmitted signals are combined in the radio channel and the mobile terminal experiences the transmitted signals as one signal propagated through a multipath channel. Additionally, each base station transmits a base station specific pilot signal. The mobile terminal carries out a channel estimation procedure for each received pilot signal and combines the channel estimates to obtain information how to equalize the received data signal. Then, the mobile terminal calculates equalization weights from the combined channel estimates and equalizes the received data signal.
摘要翻译：提出了一种半单频网络（SFN）概念。根据SFN概念，相同的数据信号在同一频带上同时从多个基站发送到移动终端。因此，所发送的信号在无线电信道中组合，并且移动终端经历作为通过多径信道传播的一个信号的发送信号。另外，每个基站发送基站专用导频信号。移动终端对每个接收到的导频信号执行信道估计过程，并组合信道估计以获得如何均衡接收的数据信号的信息。然后，移动终端从组合信道估计中计算均衡权重，并对接收到的数据信号进行均衡。

8. 发明授权

US07668268B2 Lower complexity computation of lattice reduction 失效
标题翻译：较低的复杂度计算晶格约简
公开(公告)号：US07668268B2
公开(公告)日：2010-02-23
申请号：US11439040
申请日：2006-05-22
申请人： Juha Heiskala
发明人： Juha Heiskala
IPC分类号： H03D1/06
CPC分类号： H04L1/06 , H04L1/005 , H04L25/0204
摘要： A signal vector is received over a plurality of channels. A channel matrix H is determined that represents at least one of the plurality of channels. An iterative algorithm such as Lenstra-Lenstra-Lovasz is used to determining a change of basis matrix T that when multiplied with the channel matrix H converges to a matrix H*T that is more orthogonal than the channel matrix H. In one aspect the iterative algorithm is upwardly bounded in the number of iterations (e.g., 20 or 30 iterations) that it may perform for any specific channel realization to determine the change of basis matrix T. In another aspect the algorithm is initiated with a matrix derived from a previously determined change of basis matrix. Both aspects may be combined in a single method or device, or either employed separately.
摘要翻译：在多个信道上接收信号矢量。确定表示多个通道中的至少一个的通道矩阵H. 迭代算法如Lenstra-Lenstra-Lovasz用于确定当与信道矩阵H相乘时的基矩阵T的变化收敛于与信道矩阵H更正交的矩阵H * T。在一个方面，迭代算法以对于任何特定信道实现来执行的迭代次数（例如，20或30次迭代）向上是有限的，以确定基矩阵T的变化。另一方面，该算法是用从先前确定的矩阵基矩阵变化。两个方面可以组合在单个方法或装置中，或者单独使用。

9. 发明申请

US20060140294A1 Block modulation 审中-公开
标题翻译：块调制
公开(公告)号：US20060140294A1
公开(公告)日：2006-06-29
申请号：US11267333
申请日：2005-11-07
申请人： Ari Hottinen , Juha Heiskala
发明人： Ari Hottinen , Juha Heiskala
IPC分类号： H04K1/10
CPC分类号： H04L27/2615 , H04L1/0009 , H04L27/2602 , H04L27/2634
摘要： A device for block transmission involving a first number of subcarriers (N), comprising: storage means for storing at least one transmission matrix having a dimension equal to the first number. The transmission matrix being arranged so that the columns of the transmission matrix represent a first transmission characteristic and the rows of the transmission matrix represent a second transmission characteristic. The transmission matrix comprises a second number (k) of block submatrices, each submatrix separated by at least one row and/or column from a further submatrix by a null matrix block.
摘要翻译：一种用于包含第一数量子载波（N）的块传输的装置，包括：存储装置，用于存储具有等于第一号码的尺寸的至少一个传输矩阵。发送矩阵被布置成使得传输矩阵的列表示第一传输特性，并且传输矩阵的行表示第二传输特性。传输矩阵包括块子矩阵的第二数目（k），每个子矩阵通过空矩阵块与另一个子矩阵相隔至少一行和/或列。

10. 发明授权

US06700453B2 Amplitude imbalance compensation of quadrature modulator 有权
标题翻译：正交调制器幅度不平衡补偿
公开(公告)号：US06700453B2
公开(公告)日：2004-03-02
申请号：US10173574
申请日：2002-06-18
申请人： Juha Heiskala , Lauri Kuru
发明人： Juha Heiskala , Lauri Kuru
IPC分类号： H03K300
CPC分类号： H04L27/368 , H03D3/009 , H04L2027/0016 , H04L2027/0018
摘要： A method and an arrangement for compensating for amplitude imbalance of a quadrature modulator including: determining a first correlation on the basis of a first modulation signal and an output signal of the quadrature modulator; determining a second correlation on the basis of a second modulation signal and the output signal of the quadrature modulator; producing a compensation signal proportional to the amplitude imbalance on the basis of a ratio of the determined correlations and the first and second modulation signals; and processing at least one of the modulation signals of the quadrature modulator with the compensation signal; wherein determining the correlations uses unprocessed modulation signals of the quadrature modulator for determining the correlations.
摘要翻译：一种用于补偿正交调制器的幅度不平衡的方法和装置，包括：基于正交调制器的第一调制信号和输出信号确定第一相关; 基于第二调制信号和正交调制器的输出信号确定第二相关; 基于所确定的相关性和第一和第二调制信号的比率产生与幅度不平衡成比例的补偿信号; 以及用所述补偿信号处理所述正交调制器的调制信号中的至少一个; 其中确定相关性使用正交调制器的未处理的调制信号来确定相关性。

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