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31. 发明申请

US20070286124A1 Downlink Signaling of Transmitter Configuration for CQI Estimation 有权
标题翻译：用于CQI估计的发射机配置的下行链路信令
公开(公告)号：US20070286124A1
公开(公告)日：2007-12-13
申请号：US11538568
申请日：2006-10-04
申请人： Stephen J. Grant , Gregory E. Bottomley , Bo Goransson
发明人： Stephen J. Grant , Gregory E. Bottomley , Bo Goransson
IPC分类号： H04Q7/00
CPC分类号： H04W72/1231 , H04B7/0452 , H04B7/0632 , H04B7/0665 , H04B7/0669 , H04W52/287 , H04W52/325 , H04W52/346 , H04W52/42 , H04W72/042
摘要： In a mobile communication system with a shared downlink traffic channel, the mobile terminals in contention for the downlink traffic channel report channel conditions to the base stations. The base station schedules the mobile terminals based on channel quality estimates from the mobile terminals and selects a transmitter configuration. The transmitter configuration may comprise, for example, the antenna configuration, and/or power and code allocations used by the base station. The base station broadcasts the transmitter configuration to all active and inactive mobile terminals. Knowledge of the transmitter configuration by the inactive mobile terminals improves the accuracy and reliability of the channel quality estimates.
摘要翻译：在具有共享下行链路业务信道的移动通信系统中，对于下行链路业务信道的竞争的移动终端向基站报告信道状况。基站根据来自移动终端的信道质量估计来调度移动终端，并选择发射机配置。发射机配置可以包括例如基站使用的天线配置和/或功率和码分配。基站将发射机配置广播到所有活动和不活动的移动终端。由非活动移动终端知道发射机配置提高了信道质量估计的准确性和可靠性。

32. 发明授权

US09641360B2 Preferential allocation of different length scrambling codes 有权
公开(公告)号：US09641360B2
公开(公告)日：2017-05-02
申请号：US13163270
申请日：2011-06-17
申请人： Ning He , Stephen J. Grant , Andres Reial
发明人： Ning He , Stephen J. Grant , Andres Reial
IPC分类号： H04W4/00 , H04L25/03 , H04L27/26 , H04W72/04 , H04W88/12
CPC分类号： H04L25/03866 , H04L27/2655 , H04W72/0466 , H04W72/048 , H04W88/12
摘要： A base station herein assists a radio network controller (RNC) to allocate scrambling codes in a cell. The base station's assistance advantageously permits the RNC to allocate different length scrambling codes to different mobile terminals (or downlink carriers) in the cell. Specifically, the base station determines a preference for whether the length of a scrambling code to be allocated to each terminal or carrier should be short or long, based on whether uplink communications transmitted by the terminal, or downlink communications transmitted over the carrier, are to be processed with a high-complexity receiver or a low-complexity receiver. The RNC receives these preferences from the base station and takes them into account in order to allocate either a short scrambling code or a long scrambling code to each terminal or downlink carrier in the cell. The RNC then propagates the scrambling code allocations throughout the cell.

33. 发明授权

US08781011B2 Receiver parametric covariance estimation for precoded MIMO transmissions 有权
标题翻译：用于预编码MIMO传输的接收机参数协方差估计
公开(公告)号：US08781011B2
公开(公告)日：2014-07-15
申请号：US12036323
申请日：2008-02-25
申请人： Stephen J. Grant
发明人： Stephen J. Grant
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0417 , H04B1/712 , H04B2201/709727
摘要： A model-based technique for estimating signal impairments that can accommodate various transmitted signal configurations, including closed-loop transmit diversity signals and pre-coded MIMO signals, is disclosed. In an exemplary method, an impairment model is constructed for a received composite information signal comprising at least a first data stream transmitted from first and second antennas according to a first antenna weighting vector. The impairment model includes one or more model terms scaled by corresponding scaling parameters, wherein the model terms capture propagation channel effects and are independent of the first antenna weighting vector, and wherein the scaling parameters capture effects of the first antenna weighting vector. A parametric estimate of the impairment covariance is calculated using the impairment model.
摘要翻译：公开了一种用于估计可以适应各种发射信号配置的信号损伤的基于模型的技术，包括闭环发射分集信号和预编码的MIMO信号。在一个示例性方法中，针对接收的复合信息信号构建损伤模型，所述复合信息信号包括根据第一天线加权向量从第一和第二天线发送的至少第一数据流。所述损伤模型包括由相应的缩放参数缩放的一个或多个模型项，其中所述模型项捕获传播信道效应，并且独立于所述第一天线加权矢量，并且其中所述缩放参数捕获所述第一天线加权矢量的效果。使用损伤模型计算损伤协方差的参数估计。

34. 发明申请

US20090213909A1 Code Power Estimation for MIMO Signals 有权
标题翻译： MIMO信号的码功率估计
公开(公告)号：US20090213909A1
公开(公告)日：2009-08-27
申请号：US12036368
申请日：2008-02-25
申请人： Stephen J. Grant , Douglas A. Cairns
发明人： Stephen J. Grant , Douglas A. Cairns
IPC分类号： H04B1/707 , H04B17/00
CPC分类号： H04B7/0426 , H04B1/712 , H04B2201/709727
摘要： Methods and apparatus for estimating code-reuse interference associated with a received multi-stream multiple-input multiple-output (MIMO) signal are disclosed. An estimate for the data-to-pilot power ratio, ΓD/P, may be obtained as a by-product of parametric estimation of impairment covariance associated with the received MIMO signal. In an exemplary method, a parametric impairment model is constructed for a received MIMO signal, the parametric model omitting code-reuse interference. Impairment covariance is measured, using, in one or more embodiments, received pilot symbol data. The parametric impairment model is fitted to the measured impairment covariance to obtain one or more scaling parameter values. A per-code energy value for a first data stream is then calculated from the one or more scaling parameter values. In some embodiments, the data-to-pilot power ratio for the received signal is first calculated from the one or more scaling parameters, and the per-code energy value calculated from the data-to-pilot power ratio.
摘要翻译：公开了用于估计与接收的多流多输入多输出（MIMO）信号相关联的代码重用干扰的方法和装置。可以获得数据导频功率比GammaD / P的估计，作为与接收的MIMO信号相关联的损害协方差的参数估计的副产品。在示例性方法中，为接收的MIMO信号构建参数化损伤模型，该参数模型省略了码重用干扰。在一个或多个实施例中，使用接收的导频符号数据来测量损伤协方差。参数化损伤模型适用于测量的损害协方差，以获得一个或多个缩放参数值。然后从一个或多个缩放参数值计算第一数据流的每码能量值。在一些实施例中，首先从一个或多个缩放参数和从数据导频功率比计算出的每码能量值来计算接收信号的数据导频功率比。

35. 发明申请

US20080152053A1 Method and Apparatus for Determining Combining Weights for MIMO Receivers 有权
标题翻译：用于确定MIMO接收机的组合权重的方法和装置
公开(公告)号：US20080152053A1
公开(公告)日：2008-06-26
申请号：US11613677
申请日：2006-12-20
申请人： Tracy L. Fulghum , Stephen J. Grant
发明人： Tracy L. Fulghum , Stephen J. Grant
IPC分类号： H04L1/02 , H04B7/10
CPC分类号： H04B7/0854 , H04B1/7103 , H04B2201/709727
摘要： According to a method and apparatus taught herein, the computation of intermediate combining weights considers impairment correlations common to two received signal streams, but does not account for cross-stream interference attributable to channel reuse between the two streams. Excluding consideration of channel reuse cross-stream interference from the computation of intermediate combining weights simplifies intermediate combining weight computation and increases computational robustness. Further, final combining weights, such as for Generalized Rake combining or equalization combining, may be obtained efficiently from the intermediate combining weights through the use of weight scaling factors, which do account for channel reuse cross-stream interference. Moreover, in at least some instances, the intermediate combining weights are of interest. For example, signal quality estimates for one or both streams may be computed from the corresponding intermediate combining weights.
摘要翻译：根据本文教导的方法和装置，中间组合权重的计算考虑了两个接收信号流共同的损害相关，但不考虑归因于两个流之间的信道重用的交叉流干扰。从中间组合权重的计算中排除对信道复用交叉串扰的考虑，简化了中间组合权重计算，提高了计算的鲁棒性。此外，可以通过使用考虑到信道重用串流干扰的权重缩放因子从中间组合权重有效地获得诸如用于广义Rake组合或均衡组合的最终组合权重。此外，在至少一些情况下，中间组合权重是令人感兴趣的。例如，可以从相应的中间组合权重计算一个或两个流的信号质量估计。

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