公开(公告)号：US06882857B2

公开(公告)日：2005-04-19

申请号：US10305656

申请日：2002-11-26

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

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

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

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

摘要： 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

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

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

IPC分类号： H04W52/02

CPC分类号： 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

摘要： 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.

摘要翻译： 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

申请人： Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

发明人： Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

IPC分类号： H04W24/00

CPC分类号： H04B7/0871 ,  H04B7/0814 ,  H04B7/0842

摘要： 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.

摘要翻译： 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。

公开(公告)号：US07319852B2

公开(公告)日：2008-01-15

申请号：US10233364

申请日：2002-08-29

申请人： Nikolai Schlegel ,  Christian Holenstein ,  Daniel Filipovic ,  Nitin Kasturi

发明人： Nikolai Schlegel ,  Christian Holenstein ,  Daniel Filipovic ,  Nitin Kasturi

IPC分类号： H04B1/26

CPC分类号： H04L25/063 ,  H03D3/008 ,  H04B1/30

摘要： An apparatus for coarse compensation of a direct current (DC) offset in a direct to baseband receiver architecture utilizes a serial analog to digital converter (ADC), such as a Delta-Sigma converter, to convert the received signal to digital form. The output of the ADC is sampled for a predetermined number of samples and a counter coupled to the ADC is incremented each time the sample generated by the ADC is a logic one. The counter is not incremented if the sample from the ADC is a logic zero. After the predetermined number of samples is obtained, the counter value is indicative of the DC offset in the received signal. The counter value may be converted by a code converter to a correction value for easy operation of a digital to analog converter (DAC). If the number of samples from the ADC is a power of two, the code converted may be readily implemented by simply inverting the most significant bit (MSB) from the counter to thereby generate a twos complement version of the counter value. The correction value is coupled to the DAC to generate a compensation signal, which is provided to the received signal path in the form of a feedback signal to compensate for the DC offset.

摘要翻译： 用于直接到基带接收机架构中的直流（DC）偏移的粗略补偿的装置利用诸如Δ-Σ转换器的串行模数转换器（ADC）将接收的信号转换成数字形式。 对于预定数量的采样，ADC的输出被采样，并且每当由ADC产生的采样为逻辑1时，耦合到ADC的计数器递增。 如果来自ADC的采样为逻辑0，则计数器不递增。 在获得预定数量的样本之后，计数器值表示接收信号中的直流偏移。 计数器值可以由代码转换器转换成用于容易操作数模转换器（DAC）的校正值。 如果来自ADC的采样数是2的幂，则通过简单地将来自计数器的最高有效位（MSB）反相，从而生成计数器值的二进制补码版本，可以容易地实现转换代码。 校正值耦合到DAC以产生补偿信号，其以反馈信号的形式提供给接收信号路径以补偿DC偏移。

公开(公告)号：US08879514B2

公开(公告)日：2014-11-04

申请号：US13619157

申请日：2012-09-14

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

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

IPC分类号： H04B7/216 ,  H04W52/02

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US07012911B2

公开(公告)日：2006-03-14

申请号：US09871563

申请日：2001-05-31

申请人： Nitin Kasturi ,  Rajat Rajinderkumar Dhawan ,  Daisuke Terasawa ,  Avneesh Agrawal ,  Arak Sutivong

发明人： Nitin Kasturi ,  Rajat Rajinderkumar Dhawan ,  Daisuke Terasawa ,  Avneesh Agrawal ,  Arak Sutivong

IPC分类号： H04B7/20 ,  H04J3/02 ,  H04Q7/00

CPC分类号： H04L1/0071 ,  H04J13/00 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/08

摘要： Techniques for efficient W-CDMA modulation are disclosed. In one aspect, a multiplexing/coding chain for use in modulation such as that defined by the W-CDMA specification is disclosed. In another aspect, transport blocks are processed and concatenated, utilizing memory efficiently. This aspect has the further benefit of preparing transport channels for efficient subsequent processing. It also allows for ease of interface with the transport channel source. In another aspect, the use of repeated channel coding is used in lieu of an interleaver memory to provide channel coding and interleaving. These aspects, collectively, yield the advanced benefits of a system, such as W-CDMA, in a hardware efficient manner. The techniques described herein apply equally to both access points and access terminals. The techniques are not limited to W-CDMA systems; they are quite suitable to other systems requiring the various benefits the invention offers. Various other aspects of the invention are also presented.

公开(公告)号：US08873515B2

公开(公告)日：2014-10-28

申请号：US13439736

申请日：2012-04-04

申请人： Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

发明人： Nitin Kasturi ,  Vidyut M. Naware ,  Ketan N. Patel

IPC分类号： H04W4/00 ,  H04B7/08

CPC分类号： H04B7/0871 ,  H04B7/0814 ,  H04B7/0842

摘要： 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.

摘要翻译： 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。

公开(公告)号：US06600792B2

公开(公告)日：2003-07-29

申请号：US09105532

申请日：1998-06-26

申请人： Franklin P. Antonio ,  Walid Hamdy ,  Nitin Kasturi ,  Christopher C. Riddle ,  David P. Oses

发明人： Franklin P. Antonio ,  Walid Hamdy ,  Nitin Kasturi ,  Christopher C. Riddle ,  David P. Oses

IPC分类号： H04L2549

CPC分类号： H03F1/3247 ,  H03F1/3241 ,  H03F2201/3233

摘要： A predistortion technique for high power amplifiers includes an adaptive predistortion algorithm that operates independently of data samples to write a set of complex gain values, or predistortion parameters, to a lookup table. The algorithm may be processor-driven. The gain values are taken from the lookup table and multiplied by a complex digital baseband waveform. The gain values may first be subjected to interpolation. The downconverted output of the amplifier is measured to gauge the efficacy of the predistortion. Based on the effect of the predistortion upon the ratio of in-band power to out-of-band power, decisions are made on the set of predistortion parameters for the next iteration of the algorithm. The algorithm runs continuously, perturbing parameters and adapting the predistortion functions accordingly in an effort to continually reflect instantaneous amplitude-modulation and phase-modulation relationships that may change over time with temperature variation or component aging.

摘要翻译： 用于高功率放大器的预失真技术包括自适应预失真算法，其独立于数据样本操作以将一组复增益值或预失真参数写入查找表。 算法可能是处理器驱动的。 增益值取自查表，并乘以复数数字基带波形。 增益值可以首先进行插值。 测量放大器的下变频输出以测量预失真的功效。 基于预失真对带内功率与带外功率之比的影响，决定了该算法下一次迭代的预失真参数集。 该算法连续运行，扰动参数并相应地调整预失真函数，以努力连续反映随着温度变化或分量老化而随时间变化的瞬时幅度调制和相位调制关系。