公开(公告)号：US20080051037A1

公开(公告)日：2008-02-28

申请号：US11859148

申请日：2007-09-21

申请人： Karl Molnar ,  Tomas Sundin ,  David Astely

发明人： Karl Molnar ,  Tomas Sundin ,  David Astely

IPC分类号： H04B7/005

CPC分类号： H04B7/061 ,  H04B7/0413 ,  H04B7/0632 ,  H04B7/0691 ,  H04B17/309 ,  H04W72/1278

摘要： A base station is described herein which implements a method that uses different aspects of reported channel quality information (CQI) measurements to help select the “best” transmit antenna(s) on which to transmit control channel information to mobile terminal(s). The base station can also transmit a format indicator to communicate the assigned control channel transmit antenna(s) and the assigned data transmit antenna(s) to the mobile terminal(s).

摘要翻译： 本文描述了一种基站，其实现了使用报告的信道质量信息（CQI）测量的不同方面的方法来帮助选择向其移动终端发送控制信道信息的“最佳”发射天线。 基站还可以发送格式指示符以将所分配的控制信道发射天线和所分配的数据发射天线传送到移动终端。

公开(公告)号：US20060256843A1

公开(公告)日：2006-11-16

申请号：US11443883

申请日：2006-05-31

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

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

IPC分类号： H04B1/00

CPC分类号： H04B1/712 ,  H04B1/7103 ,  H04B1/711 ,  H04B7/04 ,  H04B2201/709727

摘要： A receiver reduces interference in a received symbol of interest attributable to an interfering symbol using knowledge of the symbol spreading codes. The receiver comprises a plurality of correlators generating despread values for the received symbol of interest and the interfering symbol, and a combiner to combine the despread values using combining weights calculated based on spreading code correlations between spreading codes for the received symbol of interest and the interfering symbol.

摘要翻译： 接收机使用符号扩展码的知识来减少归因于干扰符号的接收的感兴趣的符号中的干扰。 接收机包括多个相关器，用于产生所接收的感兴趣符号和干扰符号的解扩值，以及组合器，使用基于用于所接收的感兴趣符号的扩展码与干扰信号之间的扩展码相关性计算的组合权重组合去扩展值 符号。

公开(公告)号：US20060251156A1

公开(公告)日：2006-11-09

申请号：US11449258

申请日：2006-06-08

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

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

IPC分类号： H04B1/00 ,  H04L1/02 ,  H04B1/707

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：US06493322B1

公开(公告)日：2002-12-10

申请号：US08840268

申请日：1997-04-14

申请人： Sandeep Chennakeshu ,  Amer A. Hassan ,  Barbara Molnar ,  Karl Molnar ,  Rajaram Ramesh

发明人： Sandeep Chennakeshu ,  Amer A. Hassan ,  Barbara Molnar ,  Karl Molnar ,  Rajaram Ramesh

IPC分类号： H04J314

CPC分类号： H04B7/18534

摘要： A diversity scheme for allowing a transmitter/receiver, such as a mobile unit in a mobile telecommunications system, to exchange communication signals with more than one control station, such as a base station or satellite. According to an exemplary embodiment of the diversity scheme, the mobile unit scans for the control channel of a second satellite during idle time slots while communicating with a first satellite during active time slots. Once the mobile unit detects a control channel from a second satellite, the mobile unit stores synchronization information and establishes a communication link with the second satellite if shadowing or other severe fading causes signal quality over a communication link established with a first satellite to fall below a threshold level. The diversity scheme also allows the mobile unit to communicate simultaneously with two satellites, using alternate TDMA frames.

摘要翻译： 用于允许诸如移动电信系统中的移动单元的发射机/接收机与诸如基站或卫星的多于一个控制站交换通信信号的分集方案。 根据分集方案的示例性实施例，移动单元在空闲时隙期间扫描第二卫星的控制信道，同时在活动时隙期间与第一卫星通信。 一旦移动单元检测到来自第二卫星的控制信道，则移动单元存储同步信息并与第二卫星建立通信链路，如果阴影或其他严重衰落导致通过与第一卫星建立的通信链路的信号质量降至低于 门限等级。 分集方案还允许移动单元使用备用TDMA帧同时与两颗卫星通信。

公开(公告)号：US08515435B2

公开(公告)日：2013-08-20

申请号：US11045877

申请日：2005-01-28

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

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

IPC分类号： H04W72/00

CPC分类号： H04B7/0686 ,  H04B7/061 ,  H04B7/0626 ,  H04B7/065 ,  H04B7/0689 ,  H04B7/0691 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/003 ,  H04L1/06

摘要： An adaptive transmission scheme provides multiple levels of adaptation. At a first level, a selection is made between a limited feedback or limited feedback scheme and a rich feedback scheme. At a second level of adaptation, a diversity mode is selected. Additional levels of adaptation could be employed.

摘要翻译： 自适应传输方案提供多级适配。 在第一级，在有限反馈或有限反馈方案和丰富的反馈方案之间进行选择。 在第二级适配时，选择分集模式。 可以采用额外的适应水平。

公开(公告)号：US08369793B2

公开(公告)日：2013-02-05

申请号：US12572415

申请日：2009-10-02

申请人： Karl Molnar

发明人： Karl Molnar

IPC分类号： H04B17/00

CPC分类号： H04W72/082 ,  H04B17/24 ,  H04B17/345 ,  H04L1/0007 ,  H04L1/0026 ,  H04L1/20 ,  H04W24/08

摘要： A mobile terminal measures interference over multiple measurement periods and generates interference probability data based on the statistical distribution of the interference measured. The interference probability data may describe, for example, the probability of each possible level of interference expected at the mobile terminal. The mobile terminal derives channel quality information as feedback to a base station based on this interference probability data (e.g., when noise at the mobile terminal falls below a threshold). In one embodiment, the mobile terminal does so by estimating from the interference probability data the probability of successfully receiving a transmission if certain feedback information is reported. Derived in this way, the feedback information more reliably indicates interference likely present at the mobile terminal when the base station sends the transmission. Accordingly, the base station controls the transmission based on the feedback information, and in some embodiments, also based on the interference probability data.

摘要翻译： 移动终端在多个测量周期内测量干扰，并根据所测量的干扰的统计分布产生干扰概率数据。 干扰概率数据可以例如描述在移动终端处预期的每个可能的干扰水平的概率。 移动终端基于该干扰概率数据（例如，当移动终端处的噪声低于阈值时）将信道质量信息作为对基站的反馈导出。 在一个实施例中，移动终端通过根据干扰概率数据估计在报告某些反馈信息时成功接收传输的概率来做到这一点。 以这种方式，反馈信息更可靠地指示当基站发送传输时可能存在于移动终端的干扰。 因此，基站基于反馈信息来控制传输，并且在一些实施例中也基于干扰概率数据来控制传输。

公开(公告)号：US08185057B2

公开(公告)日：2012-05-22

申请号：US12346313

申请日：2008-12-30

申请人： Karl Molnar ,  Stephen Grant

发明人： Karl Molnar ,  Stephen Grant

IPC分类号： H04B17/00

CPC分类号： H04W24/10

摘要： Operating a user equipment in a mobile communication system includes generating a measure of reliability of a predicted channel estimate and of impairment stability, wherein the predicted channel estimate is a predicted estimate of a channel between the user equipment and a node of the mobile communications system. Transmission of a channel quality report to the node of the mobile communication system is controlled as a function of the generated measure of reliability of the predicted channel estimate and of impairment stability. Transmission control includes inhibiting transmission of the channel quality report to the node of the mobile communication system for a duration of time corresponding to the measure of reliability of the predicted channel estimate and of impairment stability.

摘要翻译： 在移动通信系统中操作用户设备包括生成预测信道估计和损害稳定性的可靠性度量，其中预测信道估计是用户设备与移动通信系统的节点之间的信道的预测估计。 将信道质量报告发送到移动通信系统的节点作为所产生的预测信道估计的可靠性测量值和损害稳定性的函数进行控制。 传输控制包括在对应于预测信道估计的可靠性测量和损害稳定性的持续时间内禁止信道质量报告传输到移动通信系统的节点。

公开(公告)号：US20120058767A1

公开(公告)日：2012-03-08

申请号：US13292738

申请日：2011-11-09

申请人： Karl Molnar ,  Kambiz C. Zangi ,  Leonid Krasny ,  Stephen Grant ,  Jonas B. Karlsson

发明人： Karl Molnar ,  Kambiz C. Zangi ,  Leonid Krasny ,  Stephen Grant ,  Jonas B. Karlsson

IPC分类号： H04W74/04 ,  H04W36/00 ,  H04W72/04

CPC分类号： H04B7/0619 ,  H04B7/024 ,  H04B7/061 ,  H04B7/0639 ,  H04B7/0691 ,  H04B7/10 ,  H04W72/12 ,  H04W72/1278 ,  H04W88/02

摘要： A communication device is described herein that has control (or at least partial control) over which virtual antenna(s) in one or more base stations to use for transmissions. In one embodiment, the mobile phone performs the following steps: (1) receives an antenna subset list (from the scheduling unit) which identifies a configuration of virtual antennas that is associated with the base station(s); (2) uses the antenna subset list to select which virtual antenna(s) in the configuration of virtual antennas to use for transmissions; and (3) sends an antenna selection signal (to the scheduling unit) which contains information that instructs/requests the base station(s)/scheduling unit to use the selected virtual antenna(s) for transmissions.

摘要翻译： 本文描述的通信设备具有控制（或至少部分控制），一个或多个基站中的虚拟天线将用于传输。 在一个实施例中，移动电话执行以下步骤：（1）从识别与基站相关联的虚拟天线的配置接收来自调度单元的天线子集列表; （2）使用天线子集列表来选择用于传输的虚拟天线的配置中的哪些虚拟天线; 并且（3）发送包含指示/请求基站/调度单元使用所选择的虚拟天线进行传输的信息的天线选择信号（到调度单元）。

公开(公告)号：US08064531B2

公开(公告)日：2011-11-22

申请号：US12612208

申请日：2009-11-04

申请人： Karl Molnar

发明人： Karl Molnar

IPC分类号： H04K1/10 ,  H04L27/28

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：US20070008943A1

公开(公告)日：2007-01-11

申请号：US11138724

申请日：2005-05-26

申请人： Stephen Grant ,  Jung-fu Cheng ,  Karl Molnar ,  Yi-Pin Wang ,  Rajaram Ramesh

发明人： Stephen Grant ,  Jung-fu Cheng ,  Karl Molnar ,  Yi-Pin Wang ,  Rajaram Ramesh

IPC分类号： H04B7/216

CPC分类号： H04L1/0026 ,  H04B7/061 ,  H04B7/0678 ,  H04B7/0691 ,  H04B7/0697 ,  H04B17/309 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0033 ,  H04L1/06 ,  H04L1/20 ,  H04L5/0057 ,  H04W24/10

摘要： A wireless communication receiver receiving a multiplexed signal comprising two or more signal streams calculates a received signal quality for the multiplexed signal as a function of stream-specific received signal qualities, determines one or more loss parameters indicative of variations in the stream-specific received signal qualities, and generates quality feedback based on such information. In turn, a transmitter controls the selection of one or more transmission parameters of the multiplexed signal based on the quality feedback, such that its transmit link adaptations account for the losses in received signal quality at the receiver arising from the variations in the stream-specific received signal qualities. The quality feedback may include calculated loss values, or parameter/penalties that permit loss calculation, and the method applies to both code multiplexing and spatial multiplexing.

摘要翻译： 接收包括两个或多个信号流的多路复用信号的无线通信接收机根据流专用接收信号质量计算多路复用信号的接收信号质量，确定一个或多个指示流特定接收信号变化的丢失参数 质量，并根据这些信息产生质量反馈。 反过来，发射机基于质量反馈来控制对多路复用信号的一个或多个传输参数的选择，使得其发射链路适应性考虑到接收机的接收信号质量中由于流特定的变化引起的损耗 收到信号质量。 质量反馈可以包括计算的损失值或允许损耗计算的参数/惩罚，并且该方法适用于码复用和空间复用两者。