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公开(公告)号：US07778154B2
公开(公告)日：2010-08-17
申请号：US12054517
申请日：2008-03-25
申请人： Bing Xu , Pravin Premakanthan , Daniel B. Schwartz
发明人： Bing Xu , Pravin Premakanthan , Daniel B. Schwartz
IPC分类号： H04J7/00
CPC分类号： H04B1/0475 , H03G3/3042 , H04B2001/0416 , H04B2215/061
摘要： A technique of operating a communication device includes identifying a signal null associated with a signal to be transmitted on a first communication channel. A channel gain of the first communication channel is adjusted at a time that substantially coincides with the signal null to reduce transient noise spectrum coupled from the first communication channel to one or more second communication channels.
摘要翻译： 操作通信设备的技术包括识别与要在第一通信信道上发送的信号相关联的信号零。 第一通信信道的信道增益在与信号为零的基本一致的时刻被调整，以减少从第一通信信道耦合到一个或多个第二通信信道的瞬态噪声频谱。
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公开(公告)号：US20090245288A1
公开(公告)日：2009-10-01
申请号：US12054517
申请日：2008-03-25
申请人： Bing Xu , Pravin Premakanthan , Daniel B. Schwartz
发明人： Bing Xu , Pravin Premakanthan , Daniel B. Schwartz
IPC分类号： H04J13/00
CPC分类号： H04B1/0475 , H03G3/3042 , H04B2001/0416 , H04B2215/061
摘要： A technique of operating a communication device includes identifying a signal null associated with a signal to be transmitted on a first communication channel. A channel gain of the first communication channel is adjusted at a time that substantially coincides with the signal null to reduce transient noise spectrum coupled from the first communication channel to one or more second communication channels.
摘要翻译： 操作通信设备的技术包括识别与要在第一通信信道上发送的信号相关联的信号零。 第一通信信道的信道增益在与信号为零的基本一致的时刻被调整，以减少从第一通信信道耦合到一个或多个第二通信信道的瞬态噪声频谱。
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3.发明授权System and method for frequency-agile transmission in a wireless communication device 有权无线通信设备中频率敏捷传输的系统和方法公开(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
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。
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公开(公告)号：US20100105343A1
公开(公告)日：2010-04-29
申请号：US12259867
申请日：2008-10-28
申请人： Kenneth E. Stebbings , Vivek Bhan , Daniel B. Schwartz , Bing Xu
发明人： Kenneth E. Stebbings , Vivek Bhan , Daniel B. Schwartz , Bing Xu
CPC分类号： H04B1/0475 , H03F1/02 , H03F1/0266 , H03F1/3247 , H03F3/195 , H03F3/24 , H03G3/3042 , H04B2001/045 , H04L27/368
摘要： Systems and methods are provided for controlling headroom of an amplifier (e.g., in a transmitter). A method comprises obtaining a target output power for a current interval and obtaining a target headroom for a subsequent interval. The method continues by adjusting, during the current interval, the power output capability of the amplifier based on the target headroom and adjusting the input power of an input signal based on the target output power, such that the output power of the amplifier is substantially constant during the current interval as the power output capability of the amplifier is adjusted.
摘要翻译： 提供了用于控制放大器（例如，在发射机中）的余量的系统和方法。 一种方法包括获得当前间隔的目标输出功率并获得用于后续间隔的目标余量。 该方法通过在当前时间间隔期间基于目标余量调整放大器的功率输出能力并基于目标输出功率调整输入信号的输入功率，使得放大器的输出功率基本上恒定 在当前时间间隔内，调节放大器的功率输出能力。
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5.发明申请公开(公告)号：US20130039368A1
公开(公告)日：2013-02-14
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
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。
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6.发明授权Error signal processing systems for generating a digital error signal from an analog error signal 有权用于从模拟误差信号产生数字误差信号的误差信号处理系统公开(公告)号：US08284860B2
公开(公告)日：2012-10-09
申请号：US12262575
申请日：2008-10-31
申请人： Bing Xu , Daniel B. Schwartz , Clive K. Tang
发明人： Bing Xu , Daniel B. Schwartz , Clive K. Tang
CPC分类号： H04B1/0475 , H03F1/3241 , H04B2001/0425
摘要： Apparatus, systems, and methods are provided for controlling the output of a transmitter using a digital error signal. A method comprises generating a digital reference signal based on a baseband input signal and converting the digital reference signal to an analog reference signal. The method further comprises generating an analog error signal in response to a difference between the analog reference signal and an analog output signal. The method further comprises generating a digital error signal from the analog error signal, and generating an input signal for the transmitter based on the baseband input signal and the digital error signal.
摘要翻译： 提供装置，系统和方法，用于使用数字误差信号来控制发射机的输出。 一种方法包括基于基带输入信号产生数字参考信号并将数字参考信号转换为模拟参考信号。 该方法还包括响应于模拟参考信号和模拟输出信号之间的差异产生模拟误差信号。 该方法还包括从模拟误差信号产生数字误差信号，并且基于基带输入信号和数字误差信号产生用于发射机的输入信号。
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公开(公告)号：US08000665B2
公开(公告)日：2011-08-16
申请号：US12259867
申请日：2008-10-28
申请人： Kenneth Stebbings , Vivek Bhan , Daniel B. Schwartz , Bing Xu
发明人： Kenneth Stebbings , Vivek Bhan , Daniel B. Schwartz , Bing Xu
CPC分类号： H04B1/0475 , H03F1/02 , H03F1/0266 , H03F1/3247 , H03F3/195 , H03F3/24 , H03G3/3042 , H04B2001/045 , H04L27/368
摘要： Systems and methods are provided for controlling headroom of an amplifier (e.g., in a transmitter). A method comprises obtaining a target output power for a current interval and obtaining a target headroom for a subsequent interval. The method continues by adjusting, during the current interval, the power output capability of the amplifier based on the target headroom and adjusting the input power of an input signal based on the target output power, such that the output power of the amplifier is substantially constant during the current interval as the power output capability of the amplifier is adjusted.
摘要翻译： 提供了用于控制放大器（例如，在发射机中）的余量的系统和方法。 一种方法包括获得当前间隔的目标输出功率并获得用于后续间隔的目标余量。 该方法通过在当前时间间隔期间基于目标余量调整放大器的功率输出能力并基于目标输出功率调整输入信号的输入功率，使得放大器的输出功率基本上恒定 在当前时间间隔内，调节放大器的功率输出能力。
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8.发明申请ERROR SIGNAL PROCESSING SYSTEMS FOR GENERATING A DIGITAL ERROR SIGNAL FROM AN ANALOG ERROR SIGNAL 有权用于从模拟错误信号产生数字错误信号的错误信号处理系统公开(公告)号：US20100111238A1
公开(公告)日：2010-05-06
申请号：US12262575
申请日：2008-10-31
申请人： Bing Xu , Daniel B. Schwartz , Clive K. Tang
发明人： Bing Xu , Daniel B. Schwartz , Clive K. Tang
IPC分类号： H03D1/04
CPC分类号： H04B1/0475 , H03F1/3241 , H04B2001/0425
摘要： Apparatus, systems, and methods are provided for controlling the output of a transmitter using a digital error signal. A method comprises generating a digital reference signal based on a baseband input signal and converting the digital reference signal to an analog reference signal. The method further comprises generating an analog error signal in response to a difference between the analog reference signal and an analog output signal. The method further comprises generating a digital error signal from the analog error signal, and generating an input signal for the transmitter based on the baseband input signal and the digital error signal.
摘要翻译： 提供装置，系统和方法，用于使用数字误差信号来控制发射机的输出。 一种方法包括基于基带输入信号产生数字参考信号并将数字参考信号转换为模拟参考信号。 该方法还包括响应于模拟参考信号和模拟输出信号之间的差异产生模拟误差信号。 该方法还包括从模拟误差信号产生数字误差信号，并且基于基带输入信号和数字误差信号产生用于发射机的输入信号。
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9.发明申请WIRELESS COMMUNICATION UNIT, BASEBAND MODULE, RADIO FREQUENCY MODULE, WIRELESS TERMINAL AND COMPUTER PROGRAM PRODUCT 有权无线通信单元，基带模块，无线电频率模块，无线终端和计算机程序产品公开(公告)号：US20100311464A1
公开(公告)日：2010-12-09
申请号：US12600007
申请日：2007-05-25
IPC分类号： H04M1/00
CPC分类号： H04B1/406 , H03L7/1976
摘要： A wireless communication unit has two or more communication modes including one or more mobile phone mode, in which mobile phone mode the wireless communication unit is able to transmit or receive wireless signals via an antenna from and/or to a mobile phone network in accordance with a communication protocol. The unit includes a baseband module and a radiofrequency module. A radiofrequency interface of the baseband module is connected to the radiofrequency module, for receiving and/or transmitting baseband signals from and/or to the radiofrequency module. The radiofrequency module includes a baseband interface, for receiving and/or transmitting the baseband signals to the baseband module and an antenna interface (AI) connectable to an antenna for receiving and/or transmitting radiofrequency signals from and/or to the antenna. A clock system is connected to the radiofrequency interface and the baseband interface. The clock system can provide a clock signal with a clock rate of to the radiofrequency interface and the baseband interface in one or more of the one or more mobile phone modes.
摘要翻译： 无线通信单元具有包括一个或多个移动电话模式的两个或多个通信模式，其中移动电话模式，无线通信单元能够经由天线从移动电话网络和/或向移动电话网络发送或接收无线信号，根据 通信协议。 该单元包括基带模块和射频模块。 基带模块的射频接口连接到射频模块，用于从射频模块接收和/或发射基带信号。 射频模块包括用于接收和/或发送基带信号到基带模块的基带接口和可连接到天线的天线接口（AI），用于从天线接收和/或发射射频信号。 时钟系统连接到射频接口和基带接口。 时钟系统可以在一个或多个移动电话模式中的一个或多个中提供具有到射频接口和基带接口的时钟速率的时钟信号。
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10.发明申请WIRELESS COMMUNICATION DEVICE, INTEGRATED CIRCUIT AND METHOD OF TIMING SYNCHRONISATION 有权无线通信设备，集成电路和时序同步的方法公开(公告)号：US20100034192A1
公开(公告)日：2010-02-11
申请号：US12521862
申请日：2007-01-02
IPC分类号： H04J3/06
CPC分类号： H04L7/04 , H04J3/0685
摘要： A wireless communication device comprises a first sub-system arranged to pass data to a second sub-system comprising timing synchronisation logic operably coupled to a counter, such that data is sampled by the timing synchronisation logic when passed to the second sub-system from the first sub-system wherein the wireless communication device is characterised in that the timing synchronisation logic is arranged to determine a position of a first data frame and in response thereto initiate a counting process of the counter and determine a position of a second data frame and in response thereto determine a count value from the counting process of the counter and in response to the count value determine whether to initiate a timing advance or timing retard operation on the data being passed to the second sub-system. In this manner, the inventive concept provides the wireless communication device with a mechanism to achieve timing synchronisation. In particular, the inventive concept may allow a radio frequency integrated circuit to implement timing synchronisation by advancing or retarding an ‘actual’ signal sent from digital baseband circuits in a 3G DigRF wireless communication device.
摘要翻译： 无线通信设备包括第一子系统，其被布置为将数据传递到第二子系统，该第二子系统包括可操作地耦合到计数器的定时同步逻辑，使得当数据被从第二子系统传送到第二子系统时由定时同步逻辑采样 第一子系统，其中所述无线通信装置的特征在于，所述定时同步逻辑被布置成确定第一数据帧的位置，并且响应于所述定时同步逻辑启动所述计数器的计数处理并且确定第二数据帧的位置 响应于此从计数器的计数处理确定计数值，并且响应于计数值确定是否对正被传递到第二子系统的数据启动定时提前或定时延迟操作。 以这种方式，本发明的概念为无线通信设备提供了实现定时同步的机制。 特别地，本发明的概念可以允许射频集成电路通过推进或延迟在3G DigRF无线通信设备中从数字基带电路发送的“实际”信号来实现定时同步。
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