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1. 发明授权

US10469146B1 Reducing hypothesis search for multi-panel precoder selection 有权
公开(公告)号：US10469146B1
公开(公告)日：2019-11-05
申请号：US16146919
申请日：2018-09-28
申请人： QUALCOMM Incorporated
发明人： Siavash Ekbatani , Qiang Shen
IPC分类号： H04B7/04 , H04B7/0456 , H04W72/04 , H04B7/06
摘要： Methods, systems, and devices for wireless communications are described. One example includes calculating one or more first channel capacities for each precoder hypothesis of a first subset of precoder hypotheses and selecting a first precoder hypothesis of the first subset of precoder hypotheses using the calculated first channel capacities. The example also includes selecting a second subset of precoder hypotheses based on the first precoder hypothesis, calculating one or more second channel capacities for each precoder hypothesis of the second subset of precoder hypotheses, and selecting a second precoder hypothesis of the second subset of precoder hypotheses using the calculated second channel capacities. The example also includes selecting grouping co-phase factors based at least in part on the first precoder hypothesis or the second precoder hypothesis and transmitting a first precoding matrix indicator that indicates a first precoder index based on the one or more grouping co-phase factors.

2. 发明授权

US09106321B2 Receive filters to minimize side lobes in a UWB system 有权
标题翻译：接收滤波器以最小化UWB系统中的旁瓣
公开(公告)号：US09106321B2
公开(公告)日：2015-08-11
申请号：US14042537
申请日：2013-09-30
申请人： QUALCOMM Incorporated
发明人： Alok Kumar Gupta , Siavash Ekbatani
IPC分类号： H04B1/00 , H04B1/719 , H04B1/7163
CPC分类号： H04B1/719 , H04B1/71637
摘要： Methods, systems, and devices for maximizing signal to interference plus noise ratio of a channel in a location tracking system. The methods, systems, and device may include tools and techniques for minimizing interference from adjacent samples at a receive filter, may include relaxing constraints at a transmitter. A receive filter or set of receive, or both, filters may be determined and utilized by specifying and or determining various transmitter, receiver, and channel characteristics. The receive filter and set of filters may be determined through an iterative approach involving one or more solution metrics.
摘要翻译：用于最大化位置跟踪系统中信道的信噪比加噪声比的方法，系统和装置。方法，系统和设备可以包括用于最小化在接收滤波器处的相邻采样的干扰的工具和技术，可以包括在发射机处的放松约束。可以通过指定和/或确定各种发射机，接收机和信道特性来确定和利用接收滤波器或接收集合或两者的滤波器。接收滤波器和滤波器组可以通过涉及一个或多个解决度量的迭代方法来确定。

3. 发明公开

US20240196190A1 TECHNIQUES TO CONFIGURE LOW NOISE AMPLIFIER FOR DUAL-SUBSCRIBER DUAL-ACTIVE USER EQUIPMENT 审中-公开
公开(公告)号：US20240196190A1
公开(公告)日：2024-06-13
申请号：US18063243
申请日：2022-12-08
申请人： QUALCOMM Incorporated
发明人： Siavash Ekbatani , Qingxin Chen , Yuanning Yu , Paolo Minero , Sandeep Rao , Bo Wen
IPC分类号： H04W8/18
CPC分类号： H04W8/18 , H04W88/06
摘要： Methods, systems, and devices for wireless communications are described for low noise amplifier (LNA) configurations of a user equipment (UE) operating in a dual-subscriber dual-active (DSDA) mode. The UE may establish first and second communications links via two or more antenna ports using a first subscriber identity module (SIM) and a second SIM in the DSDA mode. The UE may identify a LNA configuration from two or more available LNA configurations for receiving at least partially concurrent communications of the first SIM and the second SIM based at least in part on activation of the DSDA mode and a difference between a first received signal strength associated with the first SIM and a second received signal strength associated with the second SIM. The UE may receive the at least partially concurrent communications via the two or more antenna ports based at least in part on the identified LNA configuration.

4. 发明申请

US20150098345A1 TERNARY SEQUENCES WITH POWER OF TWO EXPONENT DIMENSIONALITIES SUITABLE FOR CHANNEL ESTIMATION 有权
标题翻译：具有适用于信道估计的两个指标尺寸的三次序列
公开(公告)号：US20150098345A1
公开(公告)日：2015-04-09
申请号：US14049256
申请日：2013-10-09
申请人： Qualcomm Incorporated
发明人： Siavash Ekbatani , Alok Kumar Gupta
IPC分类号： H04L25/02 , H04W64/00
CPC分类号： H04L25/024 , G01S5/00 , G01S5/0205 , G01S5/0215 , G01S5/0221 , G01S5/0226 , G01S5/06 , G01S11/08 , G06Q10/00 , G08B21/0272 , H04L25/0226 , H04L25/4923 , H04W64/00
摘要： Methods, systems, and devices for channel estimation in a location tracking system are described. The methods, system, and devices may include tools and techniques for determining and/or designing perfect or semi-perfect sequences (including preamble sequences) for implementation in a location tracking system. Sequences having 2's exponent dimensionality, such as ternary sequences, may be determined and employed, which may help reduce implementation complexity and/or operating power consumption. Sequences may be determined using mean square error and/or maximum autocorrelation peak performance metrics.
摘要翻译：描述了位置跟踪系统中用于信道估计的方法，系统和设备。方法，系统和装置可以包括用于确定和/或设计用于在位置跟踪系统中实现的完美或半完美序列（包括前导码序列）的工具和技术。可以确定并采用具有2个指数维数的序列，例如三进制序列，这有助于降低实现复杂度和/或操作功耗。序列可以使用均方误差和/或最大自相关峰性能度量来确定。

5. 发明申请

US20160072545A1 METHOD AND/OR SYSTEM FOR ESTIMATING A FREQUENCY OF A RECEIVED SIGNAL 审中-公开
标题翻译：估计接收信号频率的方法和/或系统
公开(公告)号：US20160072545A1
公开(公告)日：2016-03-10
申请号：US14479220
申请日：2014-09-05
申请人： QUALCOMM Incorporated
发明人： Alok K. Gupta , Siavash Ekbatani
IPC分类号： H04B1/69 , H04W72/04 , H04B17/27 , H04W24/08
CPC分类号： H04B7/01 , H04B17/21 , H04B17/27
摘要： Described are a system and method for correcting a receiver frequency at a receiver to enhance detection of arrival of a wirelessly transmitted message. In particular, a frequency offset between receiver frequency and a carrier frequency may be estimated based, at least in part, on an autocorrelation of a bit sequence in a received message.
摘要翻译：描述了一种用于在接收机处校正接收机频率以增强对无线发送消息的到达的检测的系统和方法。具体地，可以至少部分地基于接收到的消息中的比特序列的自相关来估计接收机频率和载波频率之间的频率偏移。

6. 发明申请

US20150078419A1 UWB PULSE SHAPING FILTERS WITH REDUCED COMPLEXITY AND HIGH SPECTRAL EFFICIENCY 审中-公开
标题翻译：具有降低复杂度和高光谱效率的UWB脉冲形状滤波器
公开(公告)号：US20150078419A1
公开(公告)日：2015-03-19
申请号：US14201156
申请日：2014-03-07
申请人： QUALCOMM Incorporated
发明人： Alok Kumar Gupta , Siavash Ekbatani
IPC分类号： H04B1/7163 , H04B1/717
CPC分类号： H04B1/7163 , H04B1/7172 , H04B1/7174
摘要： Methods, systems, and devices are described for maximizing transmit power of an ultra-wideband (UWB) pulse. A spectral mask and a spectral efficiency may be identified. A set of transmit filter coefficients may be generated at a fraction of a carrier frequency. The set of transmit filter coefficients may be based at least in part on the identified spectral mask and spectral efficiency. The UWB pulse may be transmitted with a shape defined at least in part by the set of transmit filter coefficients.
摘要翻译：描述了用于最大化超宽带（UWB）脉冲的发射功率的方法，系统和设备。可以识别光谱掩模和光谱效率。可以以载波频率的一小部分生成一组发射滤波器系数。发射滤波器系数的集合可以至少部分地基于所识别的频谱掩模和频谱效率。 UWB脉冲可以至少部分地由发射滤波器系数集合定义的形状来传输。

7. 发明授权

US09338034B2 Ternary sequences with power of two exponent dimensionalities suitable for channel estimation 有权
标题翻译：具有适合于信道估计的两个指数维度的幂的三元序列
公开(公告)号：US09338034B2
公开(公告)日：2016-05-10
申请号：US14049256
申请日：2013-10-09
申请人： QUALCOMM Incorporated
发明人： Siavash Ekbatani , Alok Kumar Gupta
IPC分类号： H04L25/02 , H04L25/49 , G01S5/06 , G01S5/00 , G01S5/02 , G01S11/08 , G06Q10/00 , H04W64/00 , G08B21/02
CPC分类号： H04L25/024 , G01S5/00 , G01S5/0205 , G01S5/0215 , G01S5/0221 , G01S5/0226 , G01S5/06 , G01S11/08 , G06Q10/00 , G08B21/0272 , H04L25/0226 , H04L25/4923 , H04W64/00
摘要： Methods, systems, and devices for channel estimation in a location tracking system are described. The methods, system, and devices may include tools and techniques for determining and/or designing perfect or semi-perfect sequences (including preamble sequences) for implementation in a location tracking system. Sequences having 2's exponent dimensionality, such as ternary sequences, may be determined and employed, which may help reduce implementation complexity and/or operating power consumption. Sequences may be determined using mean square error and/or maximum autocorrelation peak performance metrics.
摘要翻译：描述了位置跟踪系统中用于信道估计的方法，系统和设备。方法，系统和装置可以包括用于确定和/或设计用于在位置跟踪系统中实现的完美或半完美序列（包括前导码序列）的工具和技术。可以确定并采用具有2个指数维数的序列，例如三进制序列，这有助于降低实现复杂度和/或操作功耗。序列可以使用均方误差和/或最大自相关峰性能度量来确定。

8. 发明申请

US20150094082A1 CHANNEL ESTIMATION USING CYCLIC CORRELATION 审中-公开
标题翻译：使用循环相关的信道估计
公开(公告)号：US20150094082A1
公开(公告)日：2015-04-02
申请号：US14042634
申请日：2013-09-30
申请人： QUALCOMM INCORPORATED
发明人： Alok Kumar Gupta , Siavash Ekbatani
IPC分类号： H04W64/00 , H04L25/03 , H04L25/02
CPC分类号： H04W64/00 , H04L25/0204 , H04L25/0212 , H04L25/0216 , H04L25/0224 , H04L25/03
摘要： Methods, systems, and devices for channel estimation and/or earliest path detection in a location tracking system are described. The described tools and techniques may involve accumulation of energy of multiple copies of a periodic sequence, which may be contained and/or associated with a signal transmitted from a location tracking tag. One or more access points within the location tracking system may receive and process multiple copies of the sequence, employing period-wise coherent accumulation, and estimate an earliest path, or a corresponding delay associated with an earliest path, of the sequence. The access point(s) may transmit information related to the earliest path, including the corresponding delay, to a tracking management server, which may use the information to estimate and/or determine a location of a tag.
摘要翻译：描述了位置跟踪系统中用于信道估计和/或最早路径检测的方法，系统和设备。所描述的工具和技术可以涉及可以包含和/或与从位置跟踪标签发送的信号相关联的周期性序列的多个副本的能量的累积。位置跟踪系统内的一个或多个接入点可以接收和处理序列的多个副本，采用周期性相干累加，并估计序列的最早路径或与最早路径相关联的对应延迟。接入点可将与最早路径相关的信息（包括相应的延迟）发送到跟踪管理服务器，跟踪管理服务器可以使用该信息来估计和/或确定标签的位置。

9. 发明授权

US11490451B2 Techniques for ADC clipping rate based LNA gain value modification 有权
公开(公告)号：US11490451B2
公开(公告)日：2022-11-01
申请号：US17108767
申请日：2020-12-01
申请人： QUALCOMM Incorporated
发明人： Siavash Ekbatani
IPC分类号： H04W84/04 , H03M1/12 , H03M1/18 , H04L27/26
摘要： Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver device may identify an analog to digital converter (ADC) clipping rate for one or more measurement windows. The receiver device may modify, based at least in part on a determination that the ADC clipping rate does not satisfy a threshold, a low noise amplifier (LNA) gain value to be used by the receiver device. The receiver device may receive a signal using the modified LNA gain value. Numerous other aspects are provided.

10. 发明授权

US09167385B2 Method and apparatus for ranging using channel estimation with interference rejection 有权
标题翻译：使用具有干扰抑制的信道估计的测距方法和装置
公开(公告)号：US09167385B2
公开(公告)日：2015-10-20
申请号：US14083150
申请日：2013-11-18
申请人： QUALCOMM Incorporated
发明人： Siavash Ekbatani
IPC分类号： H04W24/00 , H04W4/02 , H04L25/02 , H04L25/03 , H04W64/00
CPC分类号： H04W4/023 , H04L1/00 , H04L1/08 , H04L25/02 , H04L25/0204 , H04L25/0226 , H04L25/03821 , H04W64/00
摘要： A ranging procedure is performed using interference cancellation using preamble messages from a plurality of objects, each of which includes a pre-defined orthogonal design coded modulation patterns. A channel for an object may be estimated using the pre-defined orthogonal design coded modulation patterns in the preamble messages received from objects to remove interference of the preamble message received from other objects. A range to an object may be determined based on a determined delay in the preamble message from that object. The range may be used to assist in determining the position of the object. The pre-defined preamble message may be transmitted by receiving a schedule for an access point in a network for a ranging procedure and periodically transmitting a pre-defined preamble message for the ranging procedure, the pre-defined preamble message includes an orthogonal design coded modulation pattern.
摘要翻译：使用来自多个对象的前导码消息使用干扰消除来执行测距过程，每个对象包括预定义的正交设计编码调制模式。可以使用从对象接收的前导消息中的预定义正交设计编码调制模式来估计对象的信道，以消除从其他对象接收的前导码消息的干扰。可以基于来自该对象的前导码消息中确定的延迟来确定到对象的范围。该范围可以用于帮助确定物体的位置。可以通过接收针对测距过程的网络中的接入点的调度并周期性地发送用于测距过程的预定义的前导消息来发送预定义的前导消息，预定义的前导消息包括正交设计编码调制模式。

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