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1. 发明申请

US20160043850A1 Techniques for Improving Channel Estimation and Tracking in a Wireless Communication System 审中-公开
标题翻译：用于改善无线通信系统中信道估计和跟踪的技术
公开(公告)号：US20160043850A1
公开(公告)日：2016-02-11
申请号：US14822030
申请日：2015-08-10
申请人： Apple Inc.
发明人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
IPC分类号： H04L5/00 , H04W28/04 , H04W56/00 , H04L25/02
CPC分类号： H04L5/0053 , H04L25/0204 , H04L25/0236 , H04W28/04 , H04W56/0055
摘要： A technique for performing channel tracking and/or channel estimation in a wireless communication device includes receiving a reference signal and one or more non-error propagation physical channel signals. In general, the one or more non-error propagation physical channel signals must be correctly decoded before a data channel can be decoded. Channel tracking and/or channel estimation are/is then performed based on the reference signal and at least one of the one or more non-error propagation physical channel signals.
摘要翻译：用于在无线通信设备中执行信道跟踪和/或信道估计的技术包括接收参考信号和一个或多个非错误传播物理信道信号。一般来说，一个或多个非错误传播物理信道信号必须在数据信道可被解码之前被正确解码。然后基于参考信号和一个或多个非错误传播物理信道信号中的至少一个执行信道跟踪和/或信道估计。

2. 发明授权

US09712309B2 Techniques for improving channel estimation and tracking in a wireless communication system 有权
公开(公告)号：US09712309B2
公开(公告)日：2017-07-18
申请号：US14822030
申请日：2015-08-10
申请人： Apple Inc.
发明人： Ning Chen , Ahsan U. Aziz , Leo G. Dehner , Taeyoon Kim
IPC分类号： H04L27/06 , H04L5/00 , H04W28/04 , H04L25/02 , H04W56/00
CPC分类号： H04L5/0053 , H04L25/0204 , H04L25/0236 , H04W28/04 , H04W56/0055
摘要： A technique for performing channel tracking and/or channel estimation in a wireless communication device includes receiving a reference signal and one or more non-error propagation physical channel signals. In general, the one or more non-error propagation physical channel signals must be correctly decoded before a data channel can be decoded. Channel tracking and/or channel estimation are/is then performed based on the reference signal and at least one of the one or more non-error propagation physical channel signals.

3. 发明授权

US09596013B2 Method and device for operating a precoded MIMO system 有权
标题翻译：用于操作预编码MIMO系统的方法和设备
公开(公告)号：US09596013B2
公开(公告)日：2017-03-14
申请号：US14146641
申请日：2014-01-02
申请人： Apple Inc.
发明人： Taeyoon Kim , Jayesh H. Kotecha
IPC分类号： H04B7/02 , H04L1/02 , H04B7/04 , H04B1/12 , H04B7/00 , H04L25/02 , H04B1/10 , H04L1/06
CPC分类号： H04B7/0465 , H04B1/109 , H04B1/123 , H04B7/002 , H04L1/06 , H04L1/0687 , H04L25/0204
摘要： A method is provided for generating precoder data, comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals; obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals; obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel; constraining one or more system performance parameters; and determining first and second precoder diagonal values (wA and wB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters.
摘要翻译：提供了一种用于生成预编码器数据的方法，包括：获得指示多个多输入/多输出信号的发射功率的发射功率数据; 获得信号质量数据，所述信号质量数据包括所述多个多输入/多输出信号的质量的至少一个度量; 获得关于无线信道的信道数据，所述信道数据包括所述无线信道中的多个信道路径中的每一个的相应信道参数的度量; 约束一个或多个系统性能参数; 以及基于所述信号质量数据，所述发射功率数据，所述信道数据以及所述一个或多个受限系统性能参数来确定第一和第二预编码器对角线值（wA和wB）。

4. 发明授权

US09532247B2 Techniques for radio link problem and recovery detection in a wireless communication system 有权
标题翻译：无线通信系统中无线电链路问题和恢复检测技术
公开(公告)号：US09532247B2
公开(公告)日：2016-12-27
申请号：US14336735
申请日：2014-07-21
申请人： APPLE INC.
发明人： Ian Wong , Taeyoon Kim
IPC分类号： H04W24/08 , G06F11/07 , H04B17/336 , H04J11/00 , H04L1/20 , H04W24/00
CPC分类号： H04W24/08 , G06F11/076 , G06F11/0793 , H04B17/336 , H04J11/0023 , H04L1/203 , H04W24/00 , H04W24/10
摘要： A technique for radio link detection in a wireless communication system includes estimating a first error rate of an indicator channel. In this case, the indicator channel includes an indication of a number of symbols in a control channel. A second error rate of the control channel is also estimated. The first and second error rates are then combined to provide a performance metric. Based on the performance metric, a determination is made as to whether a radio link problem exists.
摘要翻译：无线通信系统中的无线链路检测技术包括估计指示符信道的第一错误率。在这种情况下，指示符信道包括控制信道中符号数量的指示。还估计控制信道的第二个错误率。然后将第一和第二错误率组合以提供性能度量。基于性能度量，确定是否存在无线电链路问题。

5. 发明申请

US20140119466A1 Method and Device for Operating a Precoded MIMO System 有权
标题翻译：用于操作预编码MIMO系统的方法和装置
公开(公告)号：US20140119466A1
公开(公告)日：2014-05-01
申请号：US14146641
申请日：2014-01-02
申请人： Apple Inc.
发明人： Taeyoon Kim , Jayesh H. Kotecha
IPC分类号： H04B7/04
CPC分类号： H04B7/0465 , H04B1/109 , H04B1/123 , H04B7/002 , H04L1/06 , H04L1/0687 , H04L25/0204
摘要： A method is provided for generating precoder data (600), comprising: obtaining transmit power data indicative of a transmit power of a plurality of multiple-input/multiple-output signals (610); obtaining signal quality data, the signal quality data including at least one measure of a quality of the plurality of multiple-input/multiple-output signals (620, 630); obtaining channel data with respect to a wireless channel, the channel data including a measure of respective channel parameters of each of a plurality of channel paths in the wireless channel (620, 630); constraining one or more system performance parameters (640); and determining first and second precoder diagonal values (WA and WB) based on the signal quality data, the transmit power data, the channel data, and the one or more constrained system performance parameters (650).
摘要翻译：提供了一种用于生成预编码器数据（600）的方法，包括：获得指示多个多输入/多输出信号（610）的发射功率的发射功率数据; 获得信号质量数据，所述信号质量数据包括所述多个多输入/多输出信号（620,630）的质量的至少一个度量; 获得关于无线信道的信道数据，所述信道数据包括所述无线信道（620,630）中的多个信道路径中的每一个的相应信道参数的度量; 约束一个或多个系统性能参数（640）; 以及基于所述信号质量数据，所述发射功率数据，所述信道数据以及所述一个或多个受限系统性能参数来确定第一和第二预编码器对角线值（WA和WB）（650）。

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