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1.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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2.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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6.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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8.发明授权Distributed dynamic channel allocation technique for multi-carrier CDMA cellular systems with mobile base stations 有权用于具有移动基站的多载波CDMA蜂窝系统的分布式动态信道分配技术公开(公告)号：US07373151B1
公开(公告)日：2008-05-13
申请号：US09379675
申请日：1999-08-24
申请人： Walid Ahmed
发明人： Walid Ahmed
IPC分类号： H04Q7/20
CPC分类号： H04W72/082 , H04W28/08 , H04W72/0486
摘要： A distributed dynamic channel allocation algorithm for a multi-carrier CDMA cellular system having at least one mobile base station. The distributed dynamic channel allocation algorithm uses channel power measurements from both the requesting mobile station and the mobile base station attempting to allocate an available resource to the mobile station. The distributed dynamic channel allocation algorithm attempts to allocate the best available resource for the requesting mobile station, in terms of interference, while minimizing the amount of interruption that the allocated resource may cause to existing connections in neighboring cells. Thus, the distributed dynamic channel allocation algorithm follows a “least-interference, least-interruption” strategy. The distributed dynamic channel allocation algorithm is load balancing, since it tends to assign new resources to mobile base station with lighter loads.
摘要翻译： 一种用于具有至少一个移动基站的多载波CDMA蜂窝系统的分布式动态信道分配算法。 分布式动态信道分配算法使用来自请求移动台和移动基站的信道功率测量，尝试向移动台分配可用资源。 分布式动态信道分配算法尝试在干扰方面为请求移动台分配最佳可用资源，同时最小化所分配的资源可能对相邻小区中的现有连接造成的中断量。 因此，分布式动态信道分配算法遵循“最小干扰，最小中断”策略。 分布式动态信道分配算法是负载平衡，因为它倾向于为较轻负载的移动基站分配新的资源。
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公开(公告)号：US07006453B1
公开(公告)日：2006-02-28
申请号：US09525090
申请日：2000-03-14
IPC分类号： H04L12/28
CPC分类号： H04L45/02 , H04W8/22 , H04W8/24 , H04W40/20 , H04W40/248 , H04W40/30 , H04W48/08 , H04W64/00 , H04W84/18
摘要： In an ad-hoc mobile network, a geometry-based routing protocol (GRP) is used to route traffic from a source node to a destination node. In the GRP, each node maintains a location list, which comprises location information for a number of nodes of the ad-hoc mobile network. Periodically, each node transmits to its direct neighbors (i.e., those nodes with which it has a point-to-point link) (a) its location, and (b) its location list. Each node that receives a location list from an adjacent node merges the received location list into its own location list such that location information for existing nodes, and/or newly identified nodes, is current.
摘要翻译： 在自组织移动网络中，基于几何的路由协议（GRP）用于将来自源节点的流量路由到目的地节点。 在GRP中，每个节点维护位置列表，该位置列表包括用于ad-hoc移动网络的多个节点的位置信息。 周期性地，每个节点向其直接邻居（即，具有点对点链路的那些节点）发送（a）其位置，以及（b）其位置列表。 从相邻节点接收位置列表的每个节点将接收到的位置列表合并到其自己的位置列表中，使得现有节点和/或新识别的节点的位置信息是当前的。
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公开(公告)号：US06952463B2
公开(公告)日：2005-10-04
申请号：US09966504
申请日：2001-09-28
申请人： Walid Ahmed , Si Ming Pan
发明人： Walid Ahmed , Si Ming Pan
CPC分类号： H04L1/0059 , H04L1/0007 , H04L1/0038 , H04L1/0046 , H04L1/0061 , H04L1/0091 , H04L1/203
摘要： A method of detecting the format of received information by measuring the time period during which information being received have a power that is at or above a defined threshold. The measured time period and the information rate of the received information are then used to determine an estimate information size value of the received information. The estimated information size value is then applied to an algorithm that determines the format of the received information. Therefore, the format of received information can be detected without the use of TFCI information.
摘要翻译： 通过测量接收信息的时间段具有等于或高于定义的阈值的功率来检测接收到的信息的格式的方法。 然后使用测量的时间段和接收到的信息的信息速率来确定接收到的信息的估计信息大小值。 然后将估计的信息大小值应用于确定所接收信息的格式的算法。 因此，可以在不使用TFCI信息的情况下检测接收到的信息的格式。
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