公开(公告)号：US08023556B2

公开(公告)日：2011-09-20

申请号：US11731869

申请日：2007-03-30

申请人： Brian D. Green ,  Lysander Lim ,  Kishore Ganti

发明人： Brian D. Green ,  Lysander Lim ,  Kishore Ganti

IPC分类号： H04B13/02

CPC分类号： H03G3/3047 ,  H03F1/0205 ,  H03F3/24 ,  H04B17/13 ,  H04B2001/0416

摘要： In one implementation, a method includes receiving control information in a transceiver from a baseband processor and computing ramp values in the transceiver based on the control information. The ramp values may be computed in a signal generator of the transceiver such as an algorithmic generator. Depending on mode of operation, the ramp values may be provided to a power amplifier or a gain block of the transceiver.

摘要翻译： 在一个实现中，一种方法包括从基带处理器接收收发器中的控制信息，并且基于控制信息计算收发器中的斜坡值。 可以在诸如算法生成器的收发器的信号发生器中计算斜坡值。 根据操作模式，斜坡值可以被提供给功率放大器或收发器的增益块。

公开(公告)号：US20110191606A1

公开(公告)日：2011-08-04

申请号：US12981213

申请日：2010-12-29

申请人： Zhaozheng HOU ,  Xujun Liu

发明人： Zhaozheng HOU ,  Xujun Liu

IPC分类号： G06F1/26

CPC分类号： H03G3/004 ,  H03F1/0227 ,  H03F1/025 ,  H03F2200/102 ,  H03F2200/432 ,  H03F2200/507 ,  H03F2200/511 ,  H03G3/3047

摘要： A fast tracking power supply device, a fast tracking power supply control method, and communication equipment are provided. The fast tracking power supply device includes: a basic voltage output unit, configured to output a basic voltage; a basic current unit, configured to output a basic current; a linear amplifier, configured to output a compensation current and a compensation voltage, the linear amplifier is connected in parallel with the basic current output unit, and then is connected in series with the basic voltage output unit. The device can output signal with high efficiency and bandwidth.

摘要翻译： 提供快速跟踪电源装置，快速跟踪电源控制方法和通信设备。 快速跟踪电源装置包括：基本电压输出单元，被配置为输出基本电压; 基本电流单元，被配置为输出基本电流; 线性放大器，配置为输出补偿电流和补偿电压，线性放大器与基本电流输出单元并联，然后与基本电压输出单元串联。 该器件可以以高效率和带宽输出信号。

公开(公告)号：US20110128078A1

公开(公告)日：2011-06-02

申请号：US12629168

申请日：2009-12-02

申请人： Mark Doherty ,  Lui (Ray) Lam ,  Chun-Wen Paul Huang

发明人： Mark Doherty ,  Lui (Ray) Lam ,  Chun-Wen Paul Huang

IPC分类号： H03G3/30

CPC分类号： H03G3/3047 ,  H03F1/302 ,  H03F3/211 ,  H03F3/245 ,  H03F2200/18 ,  H03F2200/408 ,  H03F2200/447

摘要： A system and method are provided for reducing dynamic EVM of an integrated circuit power amplifier (PA) used for RF communication. In a multistage PA, the largest amplification stage is biased with a high amplitude current pulse upon receipt of a Tx enable, before receipt of the RF signal data burst. The high amplitude current pulse causes a large portion of the total ICQ budget of the multistage PA to pass through the largest amplification stage causing the entire integrated circuit to rapidly approach steady-state operating conditions. A smoothing bias current is applied to the largest amplification stage after the pulse decays to compensate for transient bias current levels while standard bias circuitry is still approaching steady-state temperature.

摘要翻译： 提供了用于减少用于RF通信的集成电路功率放大器（PA）的动态EVM的系统和方法。 在多级PA中，在接收到RF信号数据脉冲串之前，在接收到Tx使能时，最大的放大级被高振幅电流脉冲偏置。 高幅度电流脉冲导致多级PA的总ICQ预算的大部分通过最大的放大级，导致整个集成电路快速接近稳态工作条件。 在脉冲衰减后，平滑偏置电流被施加到最大放大级，以补偿瞬态偏置电流电平，而标准偏置电路仍然接近稳态温度。

公开(公告)号：US20110051829A1

公开(公告)日：2011-03-03

申请号：US12990502

申请日：2008-12-18

申请人： Christian Bergljung ,  Ming Chen ,  Muhammad Kazmi ,  Olav Queseth

发明人： Christian Bergljung ,  Ming Chen ,  Muhammad Kazmi ,  Olav Queseth

IPC分类号： H04L27/28

CPC分类号： H04W52/36 ,  H03G3/3047 ,  H04L27/2626

摘要： The present invention relates to the area of wireless communication, and especially to a method and an arrangement for transmission output power control in a cellular telecommunications network. An improved transmission output power control is achieved by adapting a pre-defined power mask to a signal transmission characteristic of the signal transmission and applying the adapted power mask to a sub-frame or an OFDM symbol. The present invention could be implemented in a network node such as an eNodeB or in a user equipment.

摘要翻译： 无线通信领域本发明涉及无线通信领域，特别涉及蜂窝式电信网络中用于传输输出功率控制的方法和装置。 改进的传输输出功率控制是通过将预定功率掩码适配到信号传输的信号传输特性并将适配的功率掩码应用于子帧或OFDM符号来实现的。 本发明可以在诸如eNodeB或用户设备的网络节点中实现。

公开(公告)号：US07873334B2

公开(公告)日：2011-01-18

申请号：US12630955

申请日：2009-12-04

申请人： Grigory Itkin ,  Andrei Kabanov

发明人： Grigory Itkin ,  Andrei Kabanov

IPC分类号： H04B1/04 ,  H01Q11/12

CPC分类号： H03G3/3042 ,  H03G3/3047

摘要： The present invention generally relates to the field of automatic power control (APC) circuitries used in the analog front end of a mobile transmitter. It particularly refers to a power control circuitry and a corresponding method for controlling the power level of an RF signal to be transmitted at the output port of a variable-gain power amplifier by performing an additional regulation of the APC loop's reference signal. Thereby, it is proposed to increase the radiated RF power in case a transmitting antenna is mismatched to said power amplifier in order to not release an ongoing call. In case there is a subject very close to the terminal antenna, the antenna load is changed and the increased reflected signal is measured. In a closed loop this increased reflected signal is mixed with a reference ramp signal which is used to calculate a reference signal representing the nominal power level for the power of the RF signal to be transmitted, which leads to an increasing of the radiated power and prevents said call from being released. The step of calculating the reference signal as a function of the reference ramp signal and a DC feedback signal is realized by the substeps of multiplying a processed version of the DC feedback signal by the reference ramp signal and adding the output signal of the multiplication step to the reference ramp signal thereby yielding said reference signal.

摘要翻译： 本发明一般涉及在移动发射机的模拟前端中使用的自动功率控制（APC）电路领域。 它特别涉及功率控制电路和相应的方法，用于通过执行APC回路参考信号的附加调节来控制在可变增益功率放大器的输出端口处发送的RF信号的功率电平。 因此，提出在发射天线与所述功率放大器不匹配的情况下增加辐射RF功率，以便不释放正在进行的呼叫。 在非常接近终端天线的被摄体的情况下，改变天线负载并测量增加的反射信号。 在闭环中，该增加的反射信号与参考斜坡信号混合，该参考斜坡信号用于计算表示要发射的RF信号的功率的标称功率电平的参考信号，这导致辐射功率的增加并防止 所谓的电话被释放。 通过将DC反馈信号的处理版本乘以参考斜坡信号并将乘法步骤的输出信号相加的子步骤来实现计算参考信号作为参考斜坡信号和DC反馈信号的函数的步骤 参考斜坡信号从而产生所述参考信号。

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：US07792090B2

公开(公告)日：2010-09-07

申请号：US11613161

申请日：2006-12-19

申请人： Ji Hyun Choi

发明人： Ji Hyun Choi

IPC分类号： H04B7/212

CPC分类号： H03G3/3047

摘要： Methods for determining an inter-slot power level are disclosed. In one example embodiment, the inter-slot is positioned between first and second timeslots capable of transmitting modulated signals. A first timeslot power level and a second timeslot power level are first acquired. A power level of the inter-slot is then determined using the first and second timeslot power-levels. In this example embodiment, the inter-slot power level is maintained within a predetermined deviation from a specific range. The specific range is defined by the first and second timeslot power-levels.

摘要翻译： 公开了确定时隙功率电平的方法。 在一个示例实施例中，时隙位于能够发送调制信号的第一和第二时隙之间。 首先获取第一时隙功率电平和第二时隙功率电平。 然后使用第一和第二时隙功率电平来确定时隙的功率电平。 在该示例性实施例中，时隙功率电平保持在与特定范围的预定偏差之内。 具体范围由第一和第二时隙功率级定义。

公开(公告)号：US07755422B2

公开(公告)日：2010-07-13

申请号：US11907172

申请日：2007-10-10

申请人： Stephan V. Schell ,  Wendell B. Sander ,  Ronald A. Meck ,  Robert J. Bayruns

发明人： Stephan V. Schell ,  Wendell B. Sander ,  Ronald A. Meck ,  Robert J. Bayruns

IPC分类号： H03F3/38

CPC分类号： H03F1/0227 ,  H03C5/00 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0222 ,  H03F1/0244 ,  H03F1/025 ,  H03F3/217 ,  H03F3/2178 ,  H03F2200/324 ,  H03F2200/351 ,  H03F2200/405 ,  H03F2200/504 ,  H03G3/3047

摘要： This invention controls and modulates switched-mode power amplifiers to enable the production of signals that include amplitude modulation (and possibly, but not necessarily, phase modulation), the average power of which may be controlled over a potentially wide range.

摘要翻译： 本发明控制和调制开关模式功率放大器以使得能够产生包括幅度调制（并且可能但不一定是相位调制）的信号，其平均功率可以在可能的宽范围内被控制。

公开(公告)号：US07715812B2

公开(公告)日：2010-05-11

申请号：US11776851

申请日：2007-07-12

申请人： Takayuki Tsutsui ,  Yasutaka Nihongi

发明人： Takayuki Tsutsui ,  Yasutaka Nihongi

IPC分类号： H04B1/16

CPC分类号： H03G3/3047 ,  H03F1/0205 ,  H03F1/0261 ,  H03F3/191 ,  H03F3/60 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/27 ,  H03F2200/451 ,  H03F2203/7209 ,  H03G3/3042

摘要： Transmission in DCS1800, PCS1900, and WCDMA1900 is performed by a common second RE power amplifier. In DCS1800 and DCS1900, transmission power is set in a high transmission power mode at 33 dBm by a high-gain input amplifier to activate an internal voltage follower of a bias circuit, and in WCDMA1900, in a low transmission power mode at 28 to 29 dBm by a low-gain input amplifier to inactivate the voltage follower. Switching of the high and low transmission power modes and controlling the voltage follower are performed according to a mode signal. In an RF power amplifier module that transmits frequencies of GSM850, GSM900, DCS1800, PCS1900, and WCDMA1900, it is possible to reduce the number of power amplifiers and, for ramp-up and ramp-down of the GSM standard, to perform high-speed control of an input bias voltage and reduce noise of a transmission power of a wideband WCDMA.

摘要翻译： DCS1800，PCS1900和WCDMA1900中的传输由公共第二RE功率放大器执行。 在DCS1800和DCS1900中，通过高增益输入放大器将发射功率设置在33 dBm的高发射功率模式，以激活偏置电路的内部电压跟随器，而在WCDMA1900中，在28至29的低发射功率模式 dBm由低增益输入放大器灭极电压跟随器。 根据模式信号执行高，低发射功率模式的切换和电压跟随器的控制。 在发射GSM850，GSM900，DCS1800，PCS1900和WCDMA1900的频率的RF功率放大器模块中，可以减少功率放大器的数量，并且对于GSM标准的斜坡上升和下降， 速度控制输入偏置电压并降低宽带WCDMA的发射功率的噪声。

公开(公告)号：US07711333B2

公开(公告)日：2010-05-04

申请号：US12426847

申请日：2009-04-20

申请人： Barrie Gilbert

发明人： Barrie Gilbert

IPC分类号： H01Q11/12

CPC分类号： H03G3/3047

摘要： A measurement signal from a detector may have a complementary polarity. For example, an RF power detector may generate an output signal that decreases in magnitude in response to an increasing input signal. In one embodiment, the RF power detector may include a series of transconductance detector cells arranged to progressively turn off as the input signal becomes progressively larger.

摘要翻译： 来自检测器的测量信号可以具有互补极性。 例如，RF功率检测器可以产生响应于增加的输入信号而在幅度上减小的输出信号。 在一个实施例中，RF功率检测器可以包括一系列跨导检测器单元，其被布置成随着输入信号逐渐变大而逐渐关闭。