公开(公告)号：US20090154401A1

公开(公告)日：2009-06-18

申请号：US11958530

申请日：2007-12-18

申请人： Rishi R. Arora ,  David R. Maas ,  John M. Harris ,  Jun Wang ,  Robert V. Stephens ,  Samir S. Vaidya

发明人： Rishi R. Arora ,  David R. Maas ,  John M. Harris ,  Jun Wang ,  Robert V. Stephens ,  Samir S. Vaidya

IPC分类号： H04Q7/00

CPC分类号： H04W24/10 ,  H04J3/0682 ,  H04W74/08

摘要： A method is provided for allocating initial ranging opportunities in a series of frames. According to the method, a number of initial ranging opportunities are allocated in frame N that occurs after a triggering event, and k frames after frame N the number of initial ranging opportunities is selectively reduced. The triggering event is one of system startup and broadcast of an Uplink Channel Descriptor message. Also provided is a base station that includes a controller for allocating a number of initial ranging opportunities in frame N that occurs after a triggering event. The controller selectively reduces the number of initial ranging opportunities k frames after frame N. The triggering event is one of system startup, broadcast of an Uplink Channel Descriptor message, broadcast of a page message, or broadcast of a signature for an overhead configuration message.

摘要翻译： 提供了一种用于在一系列帧中分配初始测距机会的方法。 根据该方法，在触发事件发生的帧N中分配多个初始测距机会，并且在帧N之后的k帧选择性地减少初始测距机会的数量。 触发事件是上行通道描述符消息的系统启动和广播之一。 还提供了一种基站，其包括用于在触发事件之后发生的帧N中分配多个初始测距机会的控制器。 控制器选择性地减少帧N之后的k帧的初始测距机会的数量。触发事件是系统启动，上行链路信道描述符消息的广播，页面消息的广播或开销配置消息的签名的广播之一。

公开(公告)号：US06937669B2

公开(公告)日：2005-08-30

申请号：US10308831

申请日：2002-12-03

申请人： Andrew T. Tomerlin ,  Asad Ullah Aman ,  Robert V. Stephens

发明人： Andrew T. Tomerlin ,  Asad Ullah Aman ,  Robert V. Stephens

IPC分类号： H03F1/32 ,  H04L27/36 ,  H04L25/49

CPC分类号： H03F1/3247 ,  H04L27/368

摘要： A predistortion linear power amplifier utilizes several predistortion computation engines to receive a first carrier signal. The predistortion computation engines also receive input from a predistortion algorithm engine. The predistortion algorithm engine receives its data from a predistortion amplifier sensor that monitors the operating characteristics of the amplifier and also from a feedback control circuit that provides frequency correlated input and feedback data. The processed data from the predistortion algorithm engine is then input into the predistortion computation engine along with the carrier signal. An output combiner circuit takes the output of each predistortion computation engine and generates a single correction estimate, which is then input into the nonlinear amplifier for producing a substantially linear output signal.

摘要翻译： 预失真线性功率放大器利用若干预失真计算引擎来接收第一载波信号。 预失真计算引擎还从预失真算法引擎接收输入。 预失真算法引擎从预失真放大器传感器接收其数据，该预失真放大器传感器监视放大器的工作特性，并且还提供提供频率相关输入和反馈数据的反馈控制电路。 然后将来自预失真算法引擎的处理后的数据与载波信号一起输入到预失真计算引擎中。 输出组合器电路获取每个预失真计算引擎的输出并产生单个校正估计，然后输入到非线性放大器中以产生基本线性的输出信号。

公开(公告)号：US08229362B2

公开(公告)日：2012-07-24

申请号：US12467473

申请日：2009-05-18

申请人： Raghunath Hariharan ,  Robert V. Stephens

发明人： Raghunath Hariharan ,  Robert V. Stephens

IPC分类号： H04B1/00

CPC分类号： H04W72/082

摘要： A technique for decreasing noise and interference in an uplink of a wireless communication system includes detecting, at a serving base station, noise and interference levels above a threshold. In response to the detecting, a noise and interference measurement frame is scheduled that includes respective allocated portions for respective active subscriber stations and respective unallocated portions that are adjacent to the respective allocated portions and are not allocated to one of the respective active subscriber stations. The respective allocated portions and the respective unallocated portions are configured in a selected pattern in the noise and interference measurement frame. The respective noise and interference levels are determined, at the serving base station, in the respective unallocated portions of the noise and interference measurement frame. One or more rogue subscriber stations, included in the respective active subscriber stations, are then identified based on the respective noise and interference levels associated with the respective active subscriber stations. When it is ambiguous as to whether a subscriber station is a rogue subscriber station, additional noise and interference measurement frames may be scheduled to resolve the ambiguity.

摘要翻译： 一种用于降低无线通信系统的上行链路中的噪声和干扰的技术包括在服务基站处检测高于阈值的噪声和干扰电平。 响应于检测，调度噪声和干扰测量帧，其包括相应的主动用户站的相应分配部分和与相应分配部分相邻的未分配部分，并且不分配给相应的活动用户站之一。 相应的分配部分和相应的未分配部分在噪声和干扰测量帧中以选定的模式配置。 在服务基站处，在噪声和干扰测量帧的相应未分配部分中确定相应的噪声和干扰电平。 然后，基于与相应的活动用户站相关联的相应噪声和干扰电平来识别包括在相应的活动用户站中的一个或多个流氓用户站。 如果用户台是否是流氓用户站，这是不明确的，则可以安排附加的噪声和干扰测量帧来解决模糊性。

公开(公告)号：US20100291876A1

公开(公告)日：2010-11-18

申请号：US12467473

申请日：2009-05-18

申请人： Raghunath Hariharan ,  Robert V. Stephens

发明人： Raghunath Hariharan ,  Robert V. Stephens

IPC分类号： H04B15/00

CPC分类号： H04W72/082

摘要： A technique for decreasing noise and interference in an uplink of a wireless communication system includes detecting, at a serving base station, noise and interference levels above a threshold. In response to the detecting, a noise and interference measurement frame is scheduled that includes respective allocated portions for respective active subscriber stations and respective unallocated portions that are adjacent to the respective allocated portions and are not allocated to one of the respective active subscriber stations. The respective allocated portions and the respective unallocated portions are configured in a selected pattern in the noise and interference measurement frame. The respective noise and interference levels are determined, at the serving base station, in the respective unallocated portions of the noise and interference measurement frame. One or more rogue subscriber stations, included in the respective active subscriber stations, are then identified based on the respective noise and interference levels associated with the respective active subscriber stations. When it is ambiguous as to whether a subscriber station is a rogue subscriber station, additional noise and interference measurement frames may be scheduled to resolve the ambiguity.

摘要翻译： 一种用于降低无线通信系统的上行链路中的噪声和干扰的技术包括在服务基站处检测高于阈值的噪声和干扰电平。 响应于检测，调度噪声和干扰测量帧，其包括相应的主动用户站的相应分配部分和与相应分配部分相邻的未分配部分，并且不分配给相应的活动用户站之一。 相应的分配部分和相应的未分配部分在噪声和干扰测量帧中以选定的模式配置。 在服务基站处，在噪声和干扰测量帧的相应未分配部分中确定相应的噪声和干扰电平。 然后，基于与相应的活动用户站相关联的相应噪声和干扰电平来识别包括在相应的活动用户站中的一个或多个流氓用户站。 如果用户台是否是流氓用户站，这是不明确的，则可以安排附加的噪声和干扰测量帧来解决模糊性。