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1.发明授权公开(公告)号：US07502422B2
公开(公告)日：2009-03-10
申请号：US10454697
申请日：2003-06-04
申请人： Anthony Dennis , Yongwen Yang , Walid Ahmed , Radwan Husseini , David Bengtson
发明人： Anthony Dennis , Yongwen Yang , Walid Ahmed , Radwan Husseini , David Bengtson
IPC分类号： H04L27/00
CPC分类号： H03F3/24 , H04L27/0008 , H04L27/361
摘要： A transmitter comprises a baseband processor, a wideband phase modulator and an amplitude modulated amplifier. A signal is provided through the baseband processor and is converted into polar coordinates, comprised of amplitude and phase components, with the amplitude component being transmitted to the amplitude modulated amplifier. The amplitude modulated amplifier being comprised of independently controllable current sources, and with the phase component being transmitted to the wideband phase modulator, for modulation upon a carrier wave, and subsequent transmission to the amplitude modulated amplifier for amplification according to control imposed by the amplitude component upon the current sources.
摘要翻译： 发射机包括基带处理器，宽带相位调制器和幅度调制放大器。 通过基带处理器提供信号，并将其转换成包括幅度和相位分量的极坐标，幅度分量被传送到幅度调制放大器。 幅度调制放大器由可独立控制的电流源组成，并且相位分量被传输到宽带相位调制器，用于在载波上进行调制，随后根据幅度分量施加到幅度调制放大器进行放大 目前来源。
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公开(公告)号：US20070018873A1
公开(公告)日：2007-01-25
申请号：US11185514
申请日：2005-07-20
申请人： Walid Ahmed , Anthony Dennis
发明人： Walid Ahmed , Anthony Dennis
IPC分类号： H03M1/12
CPC分类号： H03M1/66
摘要： A system, apparatus, method and article to emulate a filter using digital elements are described. The apparatus may include a digital-to-analog converter having an impulse response emulator, the impulse response emulator to receive multiple digital signals each having a predetermined waveform, and convert a sequence of bits from each digital signal to a predetermined analog waveform corresponding to the sequence of bits using a lookup table or digital filter. Other embodiments are described and claimed.
摘要翻译： 描述了使用数字元件来模拟滤波器的系统，装置，方法和制品。 该装置可以包括具有脉冲响应仿真器的数模转换器，该脉冲响应仿真器接收每个具有预定波形的多个数字信号，并且将来自每个数字信号的位序列转换成对应于 使用查找表或数字滤波器的位序列。 描述和要求保护其他实施例。
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3.发明授权公开(公告)号：US06903619B2
公开(公告)日：2005-06-07
申请号：US10454698
申请日：2003-06-04
申请人： Anthony Dennis , Yongwen Yang , Walid Ahmed , Radwan Husseini , David Bengtson
发明人： Anthony Dennis , Yongwen Yang , Walid Ahmed , Radwan Husseini , David Bengtson
CPC分类号： H03F3/24 , H03F2200/331
摘要： A transceiver and transmitter are shown. A baseband processor receives a signal for transmission. It converts the signal into amplitude and phase polar components. Each component is then processed—the phase component through a wideband phase modulator and the amplitude component through a wideband amplitude modulator, and the components are then recombined for further processing or transmission.
摘要翻译： 显示收发器和发射器。 基带处理器接收用于传输的信号。 它将信号转换为振幅和相位极性分量。 然后，通过宽带相位调制器对每个分量进行相位分量，并通过宽带幅度调制器对幅度分量进行处理，然后将这些分量重新组合以用于进一步的处理或传输。
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4.发明申请公开(公告)号：US20120068780A1
公开(公告)日：2012-03-22
申请号：US12914235
申请日：2010-10-28
申请人： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
发明人： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
IPC分类号： H03B5/02
摘要： Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.
摘要翻译： 提供了方法和系统来校准振荡器电路，以减少振荡器电路的一部分功率变化导致的频率拉动。 在一个实施例中，振荡器耦合到时钟缓冲器电路和调谐电容器，其被配置为将振荡器的频率调谐到蜂窝通信所需的基准频率。 时钟缓冲电路的功率变化启动振荡器看到的电容量的变化，这对振荡器的调谐产生负面影响。 寄存器存储由功率变化引起的频率偏移，并且使用频率偏移来调整调谐电容器以响应功率的变化，使得当变化时振荡器所看到的电容量总和没有改变 发生电力。
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5.发明申请Method and apparatus for signal power ramp-up in a communication transmission 审中-公开通信传输中信号功率提升的方法和装置公开(公告)号：US20070223621A1
公开(公告)日：2007-09-27
申请号：US11385212
申请日：2006-03-21
申请人： Walid Ahmed
发明人： Walid Ahmed
IPC分类号： H04L25/03
CPC分类号： H04W52/52 , H03F1/3247 , H03F1/3282 , H03F3/24 , H03F2200/451 , H03F2201/3233 , H04L25/03343
摘要： A method and apparatus for signal power ramp-up in a communication transmission. Payload data is identified for transmission. A power reference signal is determined for transmission prior to the payload data. The power reference signal and the payload data are combined to form a data burst for transmission. The combined data burst is transmitted as, wherein the power reference signal is transmitted prior to the payload data within the data burst. A feedback signal is provided based on the power reference signal portion of the transmitted data burst, and a pre-distortion signal is calibrated based on the feedback signal.
摘要翻译： 一种用于通信传输中信号功率提升的方法和装置。 有效负载数据被识别用于传输。 在有效载荷数据之前确定功率参考信号用于传输。 功率参考信号和有效载荷数据被组合以形成用于传输的数据突发。 组合的数据突发被发送，其中功率参考信号在数据突发内的有效载荷数据之前传输。 基于发送的数据脉冲串的功率参考信号部分提供反馈信号，并且基于反馈信号校准预失真信号。
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公开(公告)号：US20060255996A1
公开(公告)日：2006-11-16
申请号：US11398060
申请日：2006-04-04
申请人： Chin Li , Paul Sheehy , Eoin Carey , Gerard Quilligan , Walid Ahmed
发明人： Chin Li , Paul Sheehy , Eoin Carey , Gerard Quilligan , Walid Ahmed
IPC分类号： H03M1/12
CPC分类号： H04W52/52 , H03F1/26 , H03F3/211 , H03F3/24 , H03F3/45179 , H03F3/45183 , H03F3/45475 , H03F2200/331 , H03F2203/45356 , H03H11/1291 , H03H11/245 , H03M1/0854 , H03M1/66
摘要： A power control module receives a dynamic power control signal and generates a differential bias signal proportional to the dynamic power control signal. An analog multiplexer receives a digital amplitude signal including n bits and receives the differential bias signal. The analog multiplexer multiplexes the digital amplitude signal with the differential bias signal in parallel and generates a first differential signal. A driver module receives the first differential signal and a second differential signal. The driver module generates a first drive signal proportional to the dynamic power control signal when a bit in said digital amplitude signal is a logic one and the driver module generates a second drive signal proportional to the second differential signal when a bit in said digital amplitude signal is a logic zero.
摘要翻译： 功率控制模块接收动态功率控制信号并产生与动态功率控制信号成比例的差分偏置信号。 模拟多路复用器接收包括n位的数字幅度信号并接收差分偏置信号。 模拟多路复用器将数字幅度信号与差分偏置信号并行复用，并产生第一差分信号。 驱动器模块接收第一差分信号和第二差分信号。 当所述数字幅度信号中的位为逻辑1时，驱动器模块产生与动态功率控制信号成比例的第一驱动信号，并且当所述数字幅度信号中的位为逻辑1时，驱动器模块产生与第二差分信号成比例的第二驱动信号 是逻辑0。
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公开(公告)号：US06947398B1
公开(公告)日：2005-09-20
申请号：US09191132
申请日：1998-11-13
摘要： An addressing scheme for a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, is provided. In such addressing scheme, each mobile station is assigned an address which is a combination (preferably, a concatenation) of a unique identifier of a network node with which the mobile station is currently associated and an identifier of the mobile station. The network node identifiers may be uniquely assigned by a network administrator, while the identifiers of the mobile stations may, for example, be set to a universal MAC address assigned to the station. The address may also include a port identifier which indicates the particular application flow associated with the accompanying packets. Similarly, each network node is assigned an address which is a combination (preferably, a concatenation) of its network node identifier and, preferably, an interface identifier. The address may also include a port identifier.
摘要翻译： 提供了一种用于基于分组的多接入移动通信系统的寻址方案，其包括多个移动用户站和多个网络节点。 在这种寻址方案中，每个移动台被分配地址，该地址是移动台当前与之相关联的网络节点的唯一标识符和移动站的标识符的组合（优选地，级联）。 网络节点标识符可以由网络管理员唯一地分配，而移动站的标识符可以例如被设置为分配给站的通用MAC地址。 地址还可以包括指示与伴随的分组相关联的特定应用流的端口标识符。 类似地，为每个网络节点分配一个地址，该地址是其网络节点标识符的组合（优选地，连接），并且优选地，接口标识符。 地址还可以包括端口标识符。
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公开(公告)号：US06782261B1
公开(公告)日：2004-08-24
申请号：US09559088
申请日：2000-04-27
申请人： Walid Ahmed , Sarath Kumar , Sanjiv Nanda
发明人： Walid Ahmed , Sarath Kumar , Sanjiv Nanda
IPC分类号： H04Q720
CPC分类号： H04W36/36
摘要： In a wireless communication system, in which a mobile station is operable to monitor the signal strengths of a plurality of pilot signals transmitted from a plurality of base stations, a method and device by which the mobile station determines the membership of Active Set pilots by generating a quality metric derived as a function of (i) detected pilot signal strengths corresponding to the Active Set of pilots, and (ii) detected pilot signal strengths corresponding to a non-Active Set of pilots, determining a threshold value, the threshold value determined as a function of the quality metric, and assigning the pilot to, or removing the pilot from, the Active Set of pilots if the signal strength corresponding to the pilot exceeds the threshold value.
摘要翻译： 在无线通信系统中，其中移动台可操作以监视从多个基站发送的多个导频信号的信号强度，移动台通过该方法和设备确定活动集导频的成员资格，通过生成 作为（i）与导频的有效集合相对应的检测导频信号强度的函数导出的质量度量，以及（ii）对应于非有效导频集合的检测导频信号强度，确定阈值，所确定的阈值 作为质量度量的函数，并且如果与导频对应的信号强度超过阈值，则将导频分配给或者从导频的有源集合去除导频。
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9.发明授权公开(公告)号：US08354890B2
公开(公告)日：2013-01-15
申请号：US12914235
申请日：2010-10-28
申请人： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
发明人： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
摘要： Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.
摘要翻译： 提供了方法和系统来校准振荡器电路，以减少振荡器电路的一部分功率变化导致的频率拉动。 在一个实施例中，振荡器耦合到时钟缓冲器电路和调谐电容器，其被配置为将振荡器的频率调谐到蜂窝通信所需的基准频率。 时钟缓冲电路的功率变化启动振荡器看到的电容量的变化，这对振荡器的调谐产生负面影响。 寄存器存储由功率变化引起的频率偏移，并且使用频率偏移来调整调谐电容器以响应功率的变化，使得当变化时振荡器所看到的电容量总和没有改变 发生电力。
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公开(公告)号：US07395493B2
公开(公告)日：2008-07-01
申请号：US10161812
申请日：2002-06-04
申请人： Walid Ahmed , Juan G. Gonzalez , Salim Manji , Jose Luis Paredes
发明人： Walid Ahmed , Juan G. Gonzalez , Salim Manji , Jose Luis Paredes
IPC分类号： H03M13/03
CPC分类号： H04L25/03292
摘要： The present invention provides systems and methods for adaptively decoding transmitted frames efficiently in non-Gaussian, non-stationary environments. One such system comprises a decoder adapted to decode a received transmission frame using a decoding scheme, a channel assessment unit for sensing channel characteristics, and a tuning unit for adjusting the decoding scheme based, at least in part, on channel characteristics sensed by the channel assessment unit.
摘要翻译： 本发明提供了用于在非高斯非平稳环境中有效地自适应地解码发送帧的系统和方法。 一种这样的系统包括：解码器，其适于使用解码方案对接收到的传输帧进行解码;用于感测信道特性的信道评估单元;以及用于至少部分地基于由信道感测的信道特性来调整解码方案的调谐单元 评估单位
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