公开(公告)号：US20060050798A1

公开(公告)日：2006-03-09

申请号：US11217242

申请日：2005-08-31

Applicant: Erumusele Odigie ,  Nitin Kasturi ,  Parvathanathan Subrahmanya

Inventor： Erumusele Odigie ,  Nitin Kasturi ,  Parvathanathan Subrahmanya

IPC: H04L27/00

CPC classification number: H04W52/221 ,  H04W52/223 ,  H04W52/267 ,  H04W52/346 ,  H04W52/367 ,  Y02D70/124

Abstract: An apparatus, system, and method efficiently manage transmission power in a user equipment (UE) device by maintaining and applying an authorized power level to determine a transmission power level after a power limited transmission and before a new power control command has been received. The UE device maintains the authorized power level by monitoring and adjusting the authorized power level based on received power control commands. After a power limited transmission where the maximum power level is less than the authorized power level, the UE device determines the transmission power level for the next transmission based on the authorized power level. Accordingly, after the power limiting situation has ceased, the UE device transmits at the optimum power level eliminating the inefficiencies of transmitting at a lower than authorized power before the next power control command is received.

公开(公告)号：US07899134B2

公开(公告)日：2011-03-01

申请号：US11679285

申请日：2007-02-27

Applicant: Nathaniel Lev Grossman ,  Gokhan Mergen ,  Nitin Kasturi

Inventor： Nathaniel Lev Grossman ,  Gokhan Mergen ,  Nitin Kasturi

IPC: H03K9/00 ,  H04L27/00

CPC classification number: H04L1/0036 ,  H04B2201/7071 ,  H04L25/03038

Abstract: In general, this disclosure describes techniques for demodulating wireless signals. In particular, the techniques of this disclosure dynamically select between two or more demodulators based on channel quality information measured over a plurality of measurement periods. For example, a wireless communication device (WCD) may switch from a first demodulator to a second demodulator when the channel quality information associated with the demodulators indicates a better channel quality for the second demodulator than the first demodulator for a consecutive number of measurement periods. As another example, the WCD may compute, for each measurement period, the difference between the channel quality information associated with each of the demodulators, sum the differences, and switch demodulators when the total accumulation of the differences exceeds a threshold.

Abstract translation: 通常，本公开描述了用于解调无线信号的技术。 特别地，本公开的技术基于在多个测量周期中测量的信道质量信息，在两个或多个解调器之间动态地选择。 例如，当与解调器相关联的信道质量信息指示对于第二解调器的信道质量优于第一解调器时，连续数量的测量周期，无线通信设备（WCD）可以从第一解调器切换到第二解调器。 作为另一示例，WCD可以在每个测量周期中计算与每个解调器相关联的信道质量信息之间的差值，并且当差异的总累积超过阈值时对开关解调器进行求和。

公开(公告)号：US20100158175A1

公开(公告)日：2010-06-24

申请号：US12712924

申请日：2010-02-25

Applicant: Gokhan Mergen ,  Paravathanathan Subrahmanya ,  Vijayaraj Alilaghatta-Kantharaj ,  Nitin Kasturi

Inventor： Gokhan Mergen ,  Paravathanathan Subrahmanya ,  Vijayaraj Alilaghatta-Kantharaj ,  Nitin Kasturi

IPC: H04B1/10

CPC classification number: H04L25/025 ,  H04B17/3913 ,  H04B2201/70701 ,  H04L25/0212 ,  H04L25/0228 ,  H04L25/03038

Abstract: Techniques for filtering noisy estimates to reduce estimation errors are described. A sequence of input values (e.g., for an initial channel impulse response estimate (CIRE)) is filtered with an infinite impulse response (IIR) filter having at least one coefficient to obtain a sequence of output values (e.g., for a filtered CIRE). The coefficient(s) are updated based on the sequence of input values with an adaptive filter, a bank of prediction filters, or a normalized variation technique. To update the coefficient(s) with the adaptive filter, a sequence of predicted values is derived based on the sequence of input values. Prediction errors between the sequence of predicted values and the sequence of input values are determined and filtered to obtain filtered prediction errors. The coefficient(s) of the IIR filter are then updated based on the prediction errors and the filtered prediction errors.

Abstract translation: 描述了用于过滤噪声估计以减少估计误差的技术。 输入值的序列（例如，对于初始信道脉冲响应估计（CIRE））用具有至少一个系数的无限脉冲响应（IIR）滤波器进行滤波以获得输出值序列（例如，对于滤波后的CIRE） 。 基于具有自适应滤波器，预测滤波器组或归一化变化技术的输入值的序列来更新系数。 为了用自适应滤波器更新系数，基于输入值的序列导出预测值序列。 确定并过滤预测值序列与输入值序列之间的预测误差，以获得滤波预测误差。 然后基于预测误差和滤波预测误差来更新IIR滤波器的系数。

公开(公告)号：US20090203339A1

公开(公告)日：2009-08-13

申请号：US12109436

申请日：2008-04-25

Applicant: Gokhan Mergen ,  Manini S. Shah ,  Nathaniel Lev Grossman ,  Nitin Kasturi ,  Yan Li

Inventor： Gokhan Mergen ,  Manini S. Shah ,  Nathaniel Lev Grossman ,  Nitin Kasturi ,  Yan Li

IPC: H04B17/00

CPC classification number: H04L1/20 ,  H04L1/0026

Abstract: Disclosed are methods and apparatus for predicting a channel quality indicator in a communication system, and in particular a delayed receiver. A disclosed method for determining the predictive channel quality indicator for a delayed receiver includes determining at least one channel quality indicator from a non-delayed receiver. The method also includes determining another channel quality indicator from the delayed receiver, and then calculating the predictive channel quality indicator for the delayed receiver through a function of the channel quality indicators from the non-delayed receiver and the channel quality indicator from the delayed receiver. Corresponding apparatus are also disclosed.

Abstract translation: 公开了用于预测通信系统中的信道质量指示符的方法和装置，特别是延迟的接收机。 用于确定延迟接收机的预测信道质量指示符的公开方法包括从非延迟接收机确定至少一个信道质量指示符。 该方法还包括从延迟的接收机确定另一信道质量指示符，然后通过来自非延迟接收机的信道质量指示符和来自延迟接收机的信道质量指示符的函数来计算延迟接收机的预测信道质量指示符。 还公开了相应的装置。

公开(公告)号：US07599706B2

公开(公告)日：2009-10-06

申请号：US11008894

申请日：2004-12-10

Applicant: Yi Zhang ,  Nitin Kasturi ,  Alkinoos Hector Vayanos ,  Subramanya P. N. Rao

Inventor： Yi Zhang ,  Nitin Kasturi ,  Alkinoos Hector Vayanos ,  Subramanya P. N. Rao

IPC: H04B1/38 ,  H04B7/00 ,  H04M1/00

CPC classification number: H04W52/58 ,  H04L1/0001 ,  H04L1/0019 ,  H04L47/14 ,  H04W28/18 ,  H04W52/221 ,  H04W52/26 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: Various embodiments are provided for determining a set of acceptable transport format combinations for transmission on a current time frame. A set of acceptable modified rate power adjustment values is determined based on a maximum power level, an accumulated power commands and an initial power control command. A set of acceptable channel gain factors is determined based on the set of acceptable modified rate power adjustments values, and the set of acceptable transport format combinations is determined based on the set of acceptable channel gain factors. A possible set of modified rate power adjustment values is associated to a set of channel gain factors for determining the set of acceptable channel gain factors based on various design of a transmitter chain used for transmission of data from the mobile station.

Abstract translation: 提供了各种实施例，用于确定用于在当前时间帧上传输的一组可接受传输格式组合。 基于最大功率电平，累积功率命令和初始功率控制命令来确定一组可接受的修改率功率调整值。 基于可接受的修改率功率调整值的集合来确定一组可接受的信道增益因子，并且基于可接受的信道增益因子的集合来确定可接受传输格式组合的集合。 基于用于从移动台传输数据的发射机链的各种设计，可能的一组修改速率功率调整值与一组信道增益因子相关联，用于确定可接受的信道增益因子的集合。

公开(公告)号：US20080075147A1

公开(公告)日：2008-03-27

申请号：US11679285

申请日：2007-02-27

Applicant: Nathaniel Lev Grossman ,  Gokhan Mergen ,  Nitin Kasturi

Inventor： Nathaniel Lev Grossman ,  Gokhan Mergen ,  Nitin Kasturi

IPC: H04B1/00

CPC classification number: H04L1/0036 ,  H04B2201/7071 ,  H04L25/03038

Abstract: In general, this disclosure describes techniques for demodulating wireless signals. In particular, the techniques of this disclosure dynamically select between two or more demodulators based on channel quality information measured over a plurality of measurement periods. For example, a wireless communication device (WCD) may switch from a first demodulator to a second demodulator when the channel quality information associated with the demodulators indicates a better channel quality for the second demodulator than the first demodulator for a consecutive number of measurement periods. As another example, the WCD may compute, for each measurement period, the difference between the channel quality information associated with each of the demodulators, sum the differences, and switch demodulators when the total accumulation of the differences exceeds a threshold.

Abstract translation: 通常，本公开描述了用于解调无线信号的技术。 特别地，本公开的技术基于在多个测量周期中测量的信道质量信息，在两个或多个解调器之间动态地选择。 例如，当与解调器相关联的信道质量信息指示对于第二解调器的信道质量优于第一解调器时，连续数量的测量周期，无线通信设备（WCD）可以从第一解调器切换到第二解调器。 作为另一示例，WCD可以在每个测量周期中计算与每个解调器相关联的信道质量信息之间的差值，并且当差异的总累积超过阈值时对开关解调器进行求和。

公开(公告)号：US20050113127A1

公开(公告)日：2005-05-26

申请号：US11008894

申请日：2004-12-10

Applicant: Yi Zhang ,  Nitin Kasturi ,  Alkinoos Vayanos ,  Subramanya Rao

Inventor： Yi Zhang ,  Nitin Kasturi ,  Alkinoos Vayanos ,  Subramanya Rao

IPC: H04B7/005 ,  H04L12/56 ,  H04W28/18 ,  H04W52/22 ,  H04W52/26 ,  H04W52/36 ,  H04W52/50 ,  H04W52/58 ,  H04Q7/20

CPC classification number: H04W52/58 ,  H04L1/0001 ,  H04L1/0019 ,  H04L47/14 ,  H04W28/18 ,  H04W52/221 ,  H04W52/26 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: Various embodiments are provided for determining a set of acceptable transport format combinations for transmission on a current time frame. A set of acceptable modified rate power adjustment values is determined based on a maximum power level, an accumulated power commands and an initial power control command. A set of acceptable channel gain factors is determined based on the set of acceptable modified rate power adjustments values, and the set of acceptable transport format combinations is determined based on the set of acceptable channel gain factors. A possible set of modified rate power adjustment values is associated to a set of channel gain factors for determining the set of acceptable channel gain factors based on various design of a transmitter chain used for transmission of data from the mobile station.

Abstract translation: 提供了各种实施例，用于确定用于在当前时间帧上传输的一组可接受传输格式组合。 基于最大功率电平，累积功率命令和初始功率控制命令来确定一组可接受的修改率功率调整值。 基于可接受的修改率功率调整值的集合来确定一组可接受的信道增益因子，并且基于可接受的信道增益因子的集合来确定可接受传输格式组合的集合。 基于用于从移动台传输数据的发射机链的各种设计，可能的一组修改速率功率调整值与一组信道增益因子相关联，用于确定可接受的信道增益因子的集合。

公开(公告)号：US06882857B2

公开(公告)日：2005-04-19

申请号：US10305656

申请日：2002-11-26

Applicant: Yi Zhang ,  Nitin Kasturi ,  Alkinoos Hector Vayanos ,  Subramanya P. N. Rao

Inventor： Yi Zhang ,  Nitin Kasturi ,  Alkinoos Hector Vayanos ,  Subramanya P. N. Rao

IPC: H04B7/005 ,  H04L12/56 ,  H04W28/18 ,  H04W52/22 ,  H04W52/26 ,  H04W52/36 ,  H04W52/50 ,  H04W52/58 ,  H04B1/38 ,  H04B7/00 ,  H04M1/00

CPC classification number: H04W52/58 ,  H04L1/0001 ,  H04L1/0019 ,  H04L47/14 ,  H04W28/18 ,  H04W52/221 ,  H04W52/26 ,  H04W52/367 ,  H04W52/50 ,  H04W52/60

Abstract: Various embodiments are provided for determining a set of acceptable transport format combinations for transmission on a current time frame. A set of acceptable modified rate power adjustment values is determined based on a maximum power level, an accumulated power commands and an initial power control command. A set of acceptable channel gain factors is determined based on the set of acceptable modified rate power adjustments values, and the set of acceptable transport format combinations is determined based on the set of acceptable channel gain factors. A possible set of modified rate power adjustment values is associated to a set of channel gain factors for determining the set of acceptable channel gain factors based on various design of a transmitter chain used for transmission of data from the mobile station.

公开(公告)号：US20140078909A1

公开(公告)日：2014-03-20

申请号：US13619157

申请日：2012-09-14

Applicant: Sharad Deepak Sambhwani ,  Sony J. Akkarakaran ,  Nitin Kasturi ,  Shashank V. Maiya ,  Wei Zhang ,  Prashant Udupa Sripathi

Inventor： Sharad Deepak Sambhwani ,  Sony J. Akkarakaran ,  Nitin Kasturi ,  Shashank V. Maiya ,  Wei Zhang ,  Prashant Udupa Sripathi

IPC: H04W52/02

CPC classification number: H04W52/0238 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/25

Abstract: Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present.

Abstract translation: 用于无线通信的设备和方法包括测量第一路径度量和第二路径度量上的能量，将第一路径度量和第二路径度量上的能量与预定阈值进行比较，并确定是否存在专用控制信道（DCCH）能量。

公开(公告)号：US20120257523A1

公开(公告)日：2012-10-11

申请号：US13439736

申请日：2012-04-04

Applicant: Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

Inventor： Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

IPC: H04W24/00

CPC classification number: H04B7/0871 ,  H04B7/0814 ,  H04B7/0842

Abstract: Dynamically control of receive diversity switching in a user equipment (UE) is disclosed. By dynamically controlling the switching between enabling and disabling the receive diversity, power consumption in UEs, such as smart phones and other mobile devices may be reduced. Control is based, at least in part, on measurements for data activity performed by the UE. When the UE finds measurements that would suggest data activity, the UE will switch to enable a receive diversity state when conditions are available for the switch. Similarly, when the UE finds measurements that would suggest data inactivity, the UE will switch to disable the receive diversity state when conditions are available for the switch.

Abstract translation: 公开了用户设备（UE）中的接收分集交换的动态控制。 通过动态地控制启用和禁用接收分集之间的切换，可以减少诸如智能电话和其他移动设备的UE中的功率消耗。 控制至少部分地基于由UE执行的数据活动的测量。 当UE发现将提示数据活动的测量值时，当条件可用于交换机时，UE将切换到启用接收分集状态。 类似地，当UE发现建议数据不活动的测量时，当条件可用于交换机时，UE将切换为禁用接收分集状态。