公开(公告)号：US06252918B1

公开(公告)日：2001-06-26

申请号：US09267378

申请日：1999-03-15

申请人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

发明人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

IPC分类号： H04B110

CPC分类号： H04B1/707 ,  H04B7/005 ,  H04L25/0202 ,  H04L25/03178 ,  H04L25/03299

摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.

摘要翻译： 根据本发明，利用脉冲整形的知识，传输介质对所发送的信息符号的影响与其他效果（例如与接收和发射滤波器相关的效果）分开估计。 然后使用介质响应估计来检测信息符号。 以前，接收机已经使用复合信道的估计来检测符号。 然而，这是假设不相关的噪音，并不总是这样。

公开(公告)号：US5889827A

公开(公告)日：1999-03-30

申请号：US766167

申请日：1996-12-12

申请人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

发明人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

IPC分类号： H04B1/707 ,  H04B3/04 ,  H04B3/06 ,  H04B7/005 ,  H04L25/02 ,  H04L25/03 ,  H04B1/10

CPC分类号： H04B1/707 ,  H04B7/005 ,  H04L25/0202 ,  H04L25/03178 ,  H04L25/03299

摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.

公开(公告)号：US06603827B2

公开(公告)日：2003-08-05

申请号：US09769995

申请日：2001-01-25

申请人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

发明人： Gregory E. Bottomley ,  Karl Molnar ,  Rajaram Ramesh

IPC分类号： H04B169

CPC分类号： H04B1/707 ,  H04B7/005 ,  H04L25/0202 ,  H04L25/03178 ,  H04L25/03299

摘要： According to the present invention, the effects of the transmission medium on transmitted information symbols are estimated separately from other effects, e.g., those associated with receive and transmit filters, using knowledge of the pulse shaping. The medium response estimate is then used to detect information symbols. Previously, receivers had used estimates of the composite channel to detect symbols. This, however, assumed uncorrelated noise, which is not always the case.

摘要翻译： 根据本发明，利用脉冲整形的知识，传输介质对所发送的信息符号的影响与其他效果（例如与接收和发射滤波器相关的效果）分开估计。 然后使用介质响应估计来检测信息符号。 以前，接收机已经使用复合信道的估计来检测符号。 然而，这是假设不相关的噪音，并不总是这样。

公开(公告)号：US20110013556A1

公开(公告)日：2011-01-20

申请号：US12504233

申请日：2009-07-16

申请人： Karl Molnar ,  Gregory E. Bottomley

发明人： Karl Molnar ,  Gregory E. Bottomley

IPC分类号： H04W88/00 ,  H04B1/10

CPC分类号： H04J11/0023 ,  G06T1/00 ,  H04L27/2647

摘要： Demodulation and interference parameter estimation in an OFDM receiver is improved by identifying regions, in a two-dimensional array of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithms to identify the regions having related interference parameters. The image processing algorithms may include operations such as edge detection, segmentation, and/or clustering. The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.

摘要翻译： 通过在具有相关干扰参数的时间 - 频率传输位置的二维阵列中识别区域来提高OFDM接收机中的解调和干扰参数估计，例如由相同的预编码方案，传输等级，发射天线， 等等。 针对多个时频位置中的每一个估计干扰测量。 通过将它们视为二维图像中的像素或图像元素，并应用图像处理算法来识别具有相关干扰参数的区域来分析干扰测量。 图像处理算法可以包括诸如边缘检测，分割和/或聚类的操作。 接收机可以执行干扰抑制或消除，例如从具有相关干扰参数的识别的时间 - 频率区域内接收的信号中提取的数据的干扰抑制组合。

公开(公告)号：US08711769B2

公开(公告)日：2014-04-29

申请号：US12504233

申请日：2009-07-16

申请人： Karl Molnar ,  Gregory E. Bottomley

发明人： Karl Molnar ,  Gregory E. Bottomley

IPC分类号： H04W4/00

CPC分类号： H04J11/0023 ,  G06T1/00 ,  H04L27/2647

摘要： Demodulation and interference parameter estimation in an OFDM receiver is improved by identifying regions, in a two-dimensional array of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithms to identify the regions having related interference parameters. The image processing algorithms may include operations such as edge detection, segmentation, and/or clustering. The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.

摘要翻译： 通过在具有相关干扰参数的时间 - 频率传输位置的二维阵列中识别区域来提高OFDM接收机中的解调和干扰参数估计，例如由相同的预编码方案，传输等级，发射天线， 等等。 针对多个时频位置中的每一个估计干扰测量。 通过将它们视为二维图像中的像素或图像元素，并应用图像处理算法来识别具有相关干扰参数的区域来分析干扰测量。 图像处理算法可以包括诸如边缘检测，分割和/或聚类的操作。 接收机可以执行干扰抑制或消除，例如从具有相关干扰参数的识别的时间 - 频率区域内接收的信号中提取的数据的干扰抑制组合。

公开(公告)号：US08670497B2

公开(公告)日：2014-03-11

申请号：US13253412

申请日：2011-10-05

申请人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl Molnar ,  Jung-Fu Cheng

发明人： Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang ,  Karl Molnar ,  Jung-Fu Cheng

IPC分类号： H04B7/02

CPC分类号： H04B1/712 ,  H04B1/7103 ,  H04B1/7105 ,  H04B1/71055 ,  H04B1/7107 ,  H04B1/71072 ,  H04B7/04 ,  H04B7/0684 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0009 ,  H04L1/0048 ,  H04L1/18 ,  H04L25/021 ,  H04L25/0224 ,  H04L25/03012 ,  H04L25/03318 ,  H04L25/03331 ,  H04W52/16 ,  H04W52/325 ,  H04W52/346 ,  H04W52/42

摘要： A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver may be implemented in according to a variety of architectures, including, but not limited to, Successive Interference Cancellation (SIC) Generalized RAKE (G-RAKE), Joint Detection (JD) G-RAKE, and Minimum Mean Squared Error (MMSE) G-RAKE. Regardless of the particular receiver architecture adopted, the improved impairment correlations may be used to calculate improved (RAKE) signal combining weights and/or improve channel quality estimates for reporting by receivers operating in Wideband CDMA (W-CDMA) systems transmitting HSDPA channels via MIMO or MISO transmitters. A transmitter may be configured to facilitate impairment correlation determinations by wireless communication receivers operating in MIMO/MISO environments, by signaling one or more values, e.g., data-to-pilot signal transmit power ratios and/or transmit antenna power distributions for the data and pilot signals.

摘要翻译： 无线通信接收机通过在损伤相关计算中考虑不同的发射功率分配和不同的发射天线功率分布来改善MIMO / MISO系统中的信号损害相关估计。 接收机可以根据各种架构来实现，包括但不限于连续干扰消除（SIC）广义RAKE（G-RAKE），联合检测（JD）G-RAKE和最小均方误差（MMSE） ）G-RAKE。 不考虑所采用的特定接收机架构，改进的损害相关可以用于计算改进的（RAKE）信号组合权重和/或改善用于在通过MIMO发送HSDPA信道的宽带CDMA（W-CDMA）系统中操作的接收机报告的信道质量估计 或MISO发射机。 发射机可以被配置为通过信令一个或多个值（例如数据到导频信号发射功率比和/或数据的发射天线功率分布）来促进在MIMO / MISO环境中操作的无线通信接收机的损害相关确定，以及 导频信号。

公开(公告)号：US08428164B2

公开(公告)日：2013-04-23

申请号：US12679419

申请日：2008-03-31

申请人： Karl Molnar ,  Jung-Fu Cheng ,  Stefan Parkvall

发明人： Karl Molnar ,  Jung-Fu Cheng ,  Stefan Parkvall

IPC分类号： H04L27/28 ,  H04K1/10

CPC分类号： H04W72/0406 ,  H04J11/0069 ,  H04L1/0071 ,  H04L1/0072 ,  H04L1/0079 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0048 ,  H04L27/2637 ,  H04W72/042

摘要： A method and a radio base station for interleaving control channel data to be transmitted in a telecommunications system are described. The method comprises grouping the control channel elements CCE1-CCEn into a first order of control channel symbol groups, determining a number of available symbol group positions of control channel transmission resources, adding symbol groups comprising “dummy” values or zeros to the first order of control channel symbol groups, interleaving the first order of the control channel symbol groups resulting in an a second order, cyclic shifting the second order and mapping the cyclic shifted second order of control channel symbol groups to the control channel transmission resources.

摘要翻译： 描述用于交织要在电信系统中发送的控制信道数据的方法和无线电基站。 该方法包括将控制信道单元CCE1-CCEn分组为控制信道符号组的一级，确定控制信道传输资源的可用符号组位置的数目，将包括“虚拟”值或零的符号组添加到第一级 控制信道符号组，交织导致二阶的控制信道符号组的第一级，循环移位第二级，并将循环移位的第二级控制信道符号组映射到控制信道传输资源。

公开(公告)号：US20120214530A1

公开(公告)日：2012-08-23

申请号：US13462137

申请日：2012-05-02

申请人： Karl Molnar ,  Bo Hagerman

发明人： Karl Molnar ,  Bo Hagerman

IPC分类号： H04W72/08 ,  H04W24/02 ,  H04W88/02 ,  H04W52/26 ,  H04W88/08

CPC分类号： H04B7/0408 ,  H01Q1/246 ,  H01Q3/26 ,  H04B7/0632 ,  H04W16/28 ,  H04W72/046

摘要： A base station and method are described herein that improves the coverage in a fixed-beam wireless communication system by using antenna beam-jitter and Channel Quality Information (CQI) correction. In one embodiment, the method includes the steps of: (a) modifying a beam by introducing a beam-jitter in a beam-forming pattern; (b) receiving an estimated channel quality information, CQI, from a user terminal; (c) accounting for effects of the beam jitter on the estimated CQI to obtain a jitter-adjusted CQI estimate; (d) and using the jitter-adjusted CQI estimate during user scheduling for a future transmission to the user terminal.

摘要翻译： 本文描述了通过使用天线波束抖动和信道质量信息（CQI）校正来改进固定波束无线通信系统中的覆盖范围的基站和方法。 在一个实施例中，该方法包括以下步骤：（a）通过在波束形成模式中引入波束抖动来修改波束; （b）从用户终端接收估计的信道质量信息CQI; （c）考虑光束抖动对估计的CQI的影响以获得抖动调整的CQI估计; （d），并且在用户调度期间使用抖动调整后的CQI估计，以便将来传输到用户终端。

公开(公告)号：US20110103520A1

公开(公告)日：2011-05-05

申请号：US12612208

申请日：2009-11-04

申请人： Karl Molnar

发明人： Karl Molnar

IPC分类号： H04L27/06

CPC分类号： H04L27/0008 ,  H04L27/2649

摘要： In one embodiment, a receiver implements a method of demodulating a set of symbols dispersed within a time-frequency grid of a received OFDM signal. The method includes determining which one of two or more demodulators is preferred for use in a given region of the time-frequency grid by evaluating detection statistics generated by the demodulators for the set of symbols. Each demodulator operates according to different demodulation parameters that correspond to different interference assumptions. The method further includes recovering the set of symbols for decoding using whichever demodulator is preferred for each symbol according to the region from which the symbol is recovered. The method may be further extended by updating each demodulator's demodulation parameters using reference and/or data symbols from the region(s) where that demodulator is preferred, and recovering the desired symbols using the updated demodulation parameters. Such updating can be further iterated, for additional demodulation parameter refinement.

摘要翻译： 在一个实施例中，接收机实现解调分散在接收的OFDM信号的时间 - 频率网格内的一组符号的方法。 该方法包括通过评估用于该组符号的解调器生成的检测统计来确定两个或更多个解调器中哪一个优选用于时间频率网格的给定区域。 每个解调器根据对应于不同干扰假设的不同解调参数进行操作。 该方法还包括根据从其恢复符号的区域，使用优选用于每个符号的哪个解调器来恢复用于解码的符号集合。 可以通过使用来自优选解调器的区域的参考和/或数据符号来更新每个解调器的解调参数，以及使用更新的解调参数来恢复所需符号来进一步扩展该方法。 对于额外的解调参数细化，可以进一步重复这种更新。

公开(公告)号：US07912433B2

公开(公告)日：2011-03-22

申请号：US12750793

申请日：2010-03-31

申请人： Karl Molnar ,  Jung-Fu Cheng ,  Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang

发明人： Karl Molnar ,  Jung-Fu Cheng ,  Stephen J. Grant ,  Leonid Krasny ,  Yi-Pin Eric Wang

IPC分类号： H04B17/00

CPC分类号： H04L1/0019 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/20 ,  H04L25/0202 ,  H04L25/0222 ,  H04L27/2647

摘要： A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.

摘要翻译： 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。