公开(公告)号：US20100113105A1

公开(公告)日：2010-05-06

申请号：US12262943

申请日：2008-10-31

申请人： Bing Xu ,  Mahibur Rahman ,  Chunming Zhao

发明人： Bing Xu ,  Mahibur Rahman ,  Chunming Zhao

IPC分类号： H04B1/38 ,  H01Q11/12 ,  H04B1/16

CPC分类号： H04W52/08 ,  H04L27/0012 ,  H04W52/10 ,  H04W52/262 ,  H04W52/52

摘要： Embodiments include methods and apparatus for performing transmit power control. A gain application element receives a sequence of digital input samples and a digital gain signal, and combines the digital gain signal with the digital input samples to generate a sequence of gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples in order to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, produces a sequence of digital feedback samples from the analog feedback signal, and generates difference values based on the digital feedback samples. When a specified type of constant modulus symbol is represented in the antenna output symbol, the feedback path accumulates the difference values into an accumulated error value, and produces the digital gain signal from the accumulated error value.

摘要翻译： 实施例包括用于执行发射功率控制的方法和装置。 增益应用元件接收数字输入采样序列和数字增益信号，并将数字增益信号与数字输入采样相结合，以生成增益补偿数字采样序列。 功率放大器接收并放大增益补偿数字采样的模拟版本，以产生天线输出信号。 反馈路径从天线输出信号产生模拟反馈信号，从模拟反馈信号产生一系列数字反馈采样，并根据数字反馈采样产生差值。 当在天线输出符号中表示指定类型的常数符号符号时，反馈路径将差值累积为累积误差值，并从积累的误差值产生数字增益信号。

公开(公告)号：US09100921B2

公开(公告)日：2015-08-04

申请号：US13590008

申请日：2012-08-20

申请人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

发明人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

IPC分类号： H04B1/04 ,  H04W52/08 ,  H04W52/10 ,  H04W52/52 ,  H04W52/26 ,  H04L27/00

CPC分类号： H04W52/08 ,  H04L27/0012 ,  H04W52/10 ,  H04W52/262 ,  H04W52/52

摘要： Embodiments include methods and apparatus for performing transmit power control. A gain application element receives a sequence of digital input samples and a digital gain signal, and combines the digital gain signal with the digital input samples to generate a sequence of gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples in order to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, produces a sequence of digital feedback samples from the analog feedback signal, and generates difference values based on the digital feedback samples. When a specified type of constant modulus symbol is represented in the antenna output symbol, the feedback path accumulates the difference values into an accumulated error value, and produces the digital gain signal from the accumulated error value.

摘要翻译： 实施例包括用于执行发射功率控制的方法和装置。 增益应用元件接收数字输入采样序列和数字增益信号，并将数字增益信号与数字输入采样相结合，以生成增益补偿数字采样序列。 功率放大器接收并放大增益补偿数字采样的模拟版本，以产生天线输出信号。 反馈路径从天线输出信号产生模拟反馈信号，从模拟反馈信号产生一系列数字反馈采样，并根据数字反馈采样产生差值。 当在天线输出符号中表示指定类型的常数符号符号时，反馈路径将差值累积为累积误差值，并从积累的误差值产生数字增益信号。

公开(公告)号：US20130045773A1

公开(公告)日：2013-02-21

申请号：US13590008

申请日：2012-08-20

申请人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

发明人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

IPC分类号： H04W52/10 ,  H04W88/02 ,  H04W52/08

CPC分类号： H04W52/08 ,  H04L27/0012 ,  H04W52/10 ,  H04W52/262 ,  H04W52/52

摘要： Embodiments include methods and apparatus for performing transmit power control. A gain application element receives a sequence of digital input samples and a digital gain signal, and combines the digital gain signal with the digital input samples to generate a sequence of gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples in order to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, produces a sequence of digital feedback samples from the analog feedback signal, and generates difference values based on the digital feedback samples. When a specified type of constant modulus symbol is represented in the antenna output symbol, the feedback path accumulates the difference values into an accumulated error value, and produces the digital gain signal from the accumulated error value.

摘要翻译： 实施例包括用于执行发射功率控制的方法和装置。 增益应用元件接收数字输入采样序列和数字增益信号，并将数字增益信号与数字输入采样相结合，以生成增益补偿数字采样序列。 功率放大器接收并放大增益补偿数字采样的模拟版本，以产生天线输出信号。 反馈路径从天线输出信号产生模拟反馈信号，从模拟反馈信号产生一系列数字反馈采样，并根据数字反馈采样产生差值。 当在天线输出符号中表示指定类型的常数符号符号时，反馈路径将差值累积为累积误差值，并从积累的误差值产生数字增益信号。

公开(公告)号：US20090088098A1

公开(公告)日：2009-04-02

申请号：US11864519

申请日：2007-09-28

申请人： Bing Xu ,  Pravin Premakanthan ,  Clive Tang ,  Mahibur Rahman

发明人： Bing Xu ,  Pravin Premakanthan ,  Clive Tang ,  Mahibur Rahman

IPC分类号： H04B1/04

CPC分类号： H03G3/3047 ,  H04B2001/0416

摘要： Embodiments of wireless devices and transmitters are provided, which perform embodiments of automatic gain control methods. The embodiments of wireless devices and transmitters include a ramp generator, a digital gain signal generator, a combiner, and a variable gain amplifier. The ramp generator is adapted to receive a gain control input signal and to generate a gain ramp signal based on the gain control input signal. The digital gain signal generator is adapted to generate and incorporate a gain arc into a digital gain signal. A combiner is adapted to receive and combine a digital input signal with the digital gain signal, to generate a pre-compensated digital signal. The variable gain amplifier is adapted to apply gains indicated in the gain ramp signal to a pre-adjusted analog signal, which is generated based on the pre-compensated digital signal, in order to generate a gain-adjusted analog signal.

摘要翻译： 提供了无线设备和发射机的实施例，其执行自动增益控制方法的实施例。 无线设备和发射机的实施例包括斜坡发生器，数字增益信号发生器，组合器和可变增益放大器。 斜坡发生器适于接收增益控制输入信号并且基于增益控制输入信号产生增益斜坡信号。 数字增益信号发生器适于产生并将增益电弧并入数字增益信号中。 组合器适于接收和组合数字输入信号与数字增益信号，以产生预先补偿的数字信号。 可变增益放大器适于将增益斜坡信号中指示的增益应用于基于预补偿数字信号产生的预调节模拟信号，以便产生经增益调整的模拟信号。

公开(公告)号：US08249531B2

公开(公告)日：2012-08-21

申请号：US12262943

申请日：2008-10-31

申请人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

发明人： Bing Xu ,  Mahibur Rahman ,  Chunmig Zhao

IPC分类号： H04B1/04 ,  H04Q11/12

CPC分类号： H04W52/08 ,  H04L27/0012 ,  H04W52/10 ,  H04W52/262 ,  H04W52/52

摘要： Embodiments include methods and apparatus for performing transmit power control. A gain application element receives a sequence of digital input samples and a digital gain signal, and combines the digital gain signal with the digital input samples to generate a sequence of gain-compensated digital samples. A power amplifier receives and amplifies an analog version of the gain-compensated digital samples in order to generate an antenna output signal. A feedback path generates an analog feedback signal from the antenna output signal, produces a sequence of digital feedback samples from the analog feedback signal, and generates difference values based on the digital feedback samples. When a specified type of constant modulus symbol is represented in the antenna output symbol, the feedback path accumulates the difference values into an accumulated error value, and produces the digital gain signal from the accumulated error value.

摘要翻译： 实施例包括用于执行发射功率控制的方法和装置。 增益应用元件接收数字输入采样序列和数字增益信号，并将数字增益信号与数字输入采样相结合，以生成增益补偿数字采样序列。 功率放大器接收并放大增益补偿数字采样的模拟版本，以产生天线输出信号。 反馈路径从天线输出信号产生模拟反馈信号，从模拟反馈信号产生一系列数字反馈采样，并根据数字反馈采样产生差值。 当在天线输出符号中表示指定类型的常数符号符号时，反馈路径将差值累积为累积误差值，并从积累的误差值产生数字增益信号。

公开(公告)号：US07805116B2

公开(公告)日：2010-09-28

申请号：US11864519

申请日：2007-09-28

申请人： Bing Xu ,  Pravin Premakanthan ,  Clive Tang ,  Mahibur Rahman

发明人： Bing Xu ,  Pravin Premakanthan ,  Clive Tang ,  Mahibur Rahman

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H03G3/3047 ,  H04B2001/0416

摘要： Embodiments of wireless devices and transmitters are provided, which perform embodiments of automatic gain control methods. The embodiments of wireless devices and transmitters include a ramp generator, a digital gain signal generator, a combiner, and a variable gain amplifier. The ramp generator is adapted to receive a gain control input signal and to generate a gain ramp signal based on the gain control input signal. The digital gain signal generator is adapted to generate and incorporate a gain arc into a digital gain signal. A combiner is adapted to receive and combine a digital input signal with the digital gain signal, to generate a pre-compensated digital signal. The variable gain amplifier is adapted to apply gains indicated in the gain ramp signal to a pre-adjusted analog signal, which is generated based on the pre-compensated digital signal, in order to generate a gain-adjusted analog signal.

摘要翻译： 提供了无线设备和发射机的实施例，其执行自动增益控制方法的实施例。 无线设备和发射机的实施例包括斜坡发生器，数字增益信号发生器，组合器和可变增益放大器。 斜坡发生器适于接收增益控制输入信号并且基于增益控制输入信号产生增益斜坡信号。 数字增益信号发生器适于产生并将增益电弧并入数字增益信号中。 组合器适于接收和组合数字输入信号与数字增益信号，以产生预先补偿的数字信号。 可变增益放大器适于将增益斜坡信号中指示的增益应用于基于预补偿数字信号产生的预调节模拟信号，以便产生经增益调整的模拟信号。

公开(公告)号：US08204456B2

公开(公告)日：2012-06-19

申请号：US12882498

申请日：2010-09-15

申请人： Bing Xu ,  Clive Tang ,  Mahibur Rahman

发明人： Bing Xu ,  Clive Tang ,  Mahibur Rahman

IPC分类号： H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/3241 ,  H03F3/24 ,  H04B2001/0425

摘要： In accordance with some embodiments of the present disclosure, a method may include digitally pre-distorting a digital baseband signal with an opposite phase of a C-IM3 distortion term such that the pre-distortion and C-IM3 distortion cancel each other out in a transmitter. The method may also include digitally conditioning the pre-distorted digital signal in order to provide a flat amplitude response of a composite filter comprising a baseband filter and a digital half-band filter of the transmitter, and to provide a linear phase response for the composite filter.

摘要翻译： 根据本公开的一些实施例，一种方法可以包括以C-IM3失真项的相反相数字预失真数字基带信号，使得预失真和C-IM3失真在一个 发射机。 该方法还可以包括对预失真的数字信号进行数字调节，以便提供包括发射机的基带滤波器和数字半带滤波器的复合滤波器的平坦振幅响应，并且为复合信号提供线性相位响应 过滤。

公开(公告)号：US20120064847A1

公开(公告)日：2012-03-15

申请号：US12882498

申请日：2010-09-15

申请人： Bing Xu ,  Clive Tang ,  Mahibur Rahman

发明人： Bing Xu ,  Clive Tang ,  Mahibur Rahman

IPC分类号： H04B1/04

CPC分类号： H04B1/0475 ,  H03F1/3241 ,  H03F3/24 ,  H04B2001/0425

摘要： In accordance with some embodiments of the present disclosure, a method may include digitally pre-distorting a digital baseband signal with an opposite phase of a C-IM3 distortion term such that the pre-distortion and C-IM3 distortion cancel each other out in a transmitter. The method may also include digitally conditioning the pre-distorted digital signal in order to provide a flat amplitude response of a composite filter comprising a baseband filter and a digital half-band filter of the transmitter, and to provide a linear phase response for the composite filter.

摘要翻译： 根据本公开的一些实施例，一种方法可以包括以C-IM3失真项的相反相数字预失真数字基带信号，使得预失真和C-IM3失真在一个 发射机。 该方法还可以包括对预失真的数字信号进行数字调节，以便提供包括发射机的基带滤波器和数字半带滤波器的复合滤波器的平坦振幅响应，并且为复合信号提供线性相位响应 过滤。

公开(公告)号：US20110299644A1

公开(公告)日：2011-12-08

申请号：US12796229

申请日：2010-06-08

申请人： Bing Xu ,  Chunming Zhao

发明人： Bing Xu ,  Chunming Zhao

IPC分类号： H03D3/24 ,  H03L7/00

CPC分类号： H04B1/0475 ,  H03L7/093 ,  H03L7/099 ,  H03L2207/06

摘要： A method may include synchronizing an output of a phase-locked loop to a signal received at its input. The method may further include suppressing emission at a potentially problematic channel by applying at least one of a first gain and a first resistance of the phase-locked loop for a communication at the potentially problematic channel, wherein at least one of the first gain and the first resistance are different from a second gain and a second resistance applied for communications at channels other than potentially problematic channels.

摘要翻译： 一种方法可以包括将锁相环路的输出与在其输入处接收到的信号同步。 该方法还可以包括通过对可能有问题的信道进行通信应用锁相环的第一增益和第一电阻中的至少一个来抑制潜在有问题的信道上的发射，其中，第一增益和 第一电阻不同于第二增益和第二电阻，其应用于除了潜在有问题的通道之外的通道的通信。

公开(公告)号：US08934504B2

公开(公告)日：2015-01-13

申请号：US13208698

申请日：2011-08-12

申请人： Daniel B. Schwartz ,  David Harnishfeger ,  Jeffrey D. Ganger ,  George B. Norris ,  Bing Xu ,  Mark Alan Kirschenmann ,  Claudio Rey

发明人： Daniel B. Schwartz ,  David Harnishfeger ,  Jeffrey D. Ganger ,  George B. Norris ,  Bing Xu ,  Mark Alan Kirschenmann ,  Claudio Rey

IPC分类号： H04J1/00 ,  H04W72/00 ,  H04L5/00 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08 ,  H04L27/04

CPC分类号： H04W72/00 ,  H04L5/0007 ,  H04L5/003 ,  H04L27/04 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08

摘要： In accordance with some embodiments of the present disclosure, a method may include determining a range of frequencies allocated to resource blocks to be transmitted during a subsequent sub-frame slot or sounding reference symbol sub-slot. The method may also include determining an approximate center frequency of the range of frequencies. The method may additionally include modulating resource blocks of the sub-frame or sounding reference symbol sub-slot at the approximate center frequency. The method may further include transmitting the modulated resource blocks at the approximate center frequency.

摘要翻译： 根据本公开的一些实施例，一种方法可以包括确定分配给在随后的子帧时隙或探测参考符号子时隙期间发送的资源块的频率范围。 该方法还可以包括确定频率范围的近似中心频率。 该方法还可以包括调制子帧或探测参考符号子时隙的近似中心频率的资源块。 该方法还可以包括以近似的中心频率发射调制的资源块。