专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

121. 发明授权

US06009091A Method and apparatus for mobile station location within a communication system 失效
标题翻译：通信系统内移动台位置的方法和装置
公开(公告)号：US06009091A
公开(公告)日：1999-12-28
申请号：US41898
申请日：1998-03-13
申请人： Kenneth A. Stewart , Amitava Ghosh
发明人： Kenneth A. Stewart , Amitava Ghosh
IPC分类号： H04B7/26 , H04J11/00 , H04J13/00 , H04W64/00 , H04J13/02
CPC分类号： H04W64/00 , H04J13/0044
摘要： A Dedicated Physical Location Channel (DPLCH) is utilized by a mobile station (913) to support subscriber location functions. The DPLCH is spread by an Orthogonal Variable Spreading Factor (OVSF) code C.sub.L (502) of length 256 which is distinct from those OVSF codes assigned to other channels utilized by the mobile station (913). When a power-up function (PUF) is received by the mobile station (913), the DPLCH sub-channel amplitude is then modified relative to the other channels being utilized by the mobile station (913) using gain module G.sub.L (503) prior to combination (504) with the other channels.
摘要翻译：专用物理位置信道（DPLCH）由移动台（913）利用来支持用户定位功能。 DPLCH通过长度为256的正交可变扩频因子（OVSF）码CL（502）扩展，该距离与分配给移动台（913）使用的其他信道的那些OVSF码不同。当移动台（913）接收到上电功能（PUF）时，DPLCH子信道幅度随后由增益模块GL（503）在先前被移动台（913）利用的其它信道进行修改与其他通道组合（504）。

122. 发明授权

US5818887A Method for receiving a signal in a digital radio frequency communication system 失效
标题翻译：用于在数字射频通信系统中接收信号的方法
公开(公告)号：US5818887A
公开(公告)日：1998-10-06
申请号：US687882
申请日：1996-07-26
申请人： Thomas A. Sexton , Fuyun Ling , Kenneth A. Stewart
发明人： Thomas A. Sexton , Fuyun Ling , Kenneth A. Stewart
IPC分类号： H04L27/01 , H04B1/7085 , H04L7/00 , H04L7/033 , H04L7/10 , H04L27/22 , H04Q7/38
CPC分类号： H04B1/7085 , H04L7/0331
摘要： The method includes acquiring a signal (501); inputting (502), at a first time, a received symbol to a demodulator having a plurality of outputs to produce a set of early outputs; inputting (504), at a second time, the received symbol to the demodulator to produce a set of on-time outputs; inputting (505), at a third time, the received symbol to the demodulator to produce a set of late outputs; and comparing (506) at least one output in the set of early outputs with at least one output in the set of late outputs to produce a timing measure.
摘要翻译：该方法包括获取信号（501）; 在第一时间将接收到的符号输入（502）到具有多个输出的解调器以产生一组早期输出; 在第二时间将所接收的符号输入（504）到解调器以产生一组导通时间输出; 在第三时间将接收到的符号输入（505）到解调器以产生一组后期输出; 以及将所述早期输出集合中的至少一个输出与所述一组晚期输出中的至少一个输出进行比较（506）以产生定时测量。

123. 发明授权

US08542619B2 Method and apparatus for performing mobility measurements in a communication network 有权
标题翻译：用于在通信网络中执行移动性测量的方法和装置
公开(公告)号：US08542619B2
公开(公告)日：2013-09-24
申请号：US13073532
申请日：2011-03-28
申请人： Kenneth A. Stewart , Jean-Aicard Fabien , Michael E. Buckley , Raja S. Bachu
发明人： Kenneth A. Stewart , Jean-Aicard Fabien , Michael E. Buckley , Raja S. Bachu
IPC分类号： H04B7/00
CPC分类号： H04W36/30 , H04L5/0007 , H04L5/0048 , H04L27/2613 , H04L27/2647 , H04W48/18
摘要： A method and apparatus for performing mobility measurement in a communication network (100) is described. The method comprises of receiving a subframe sequence pattern from a node in the communication network (100). The subframe sequence pattern indicates types of subframes being transmitted by a neighboring cell node (104) in a neighboring cell (112). The method includes receiving a subframe from a sequence of subframes transmitted by the neighboring cell node (104) in the neighboring cell (112), and determining that the received subframe is a multicast subframe based on the subframe sequence pattern. The method then includes performing a single cell-specific reference symbol measurement in response to determining that the received subframe is the multicast subframe.
摘要翻译：描述了在通信网络（100）中执行移动性测量的方法和装置。该方法包括从通信网络（100）中的节点接收子帧序列模式。子帧序列模式指示由相邻小区（112）中的相邻小区节点（104）发送的子帧的类型。该方法包括从相邻小区（112）中的相邻小区节点（104）发送的子帧序列中接收子帧，并且基于子帧序列模式确定所接收的子帧是多播子帧。该方法然后包括响应于确定接收的子帧是多播子帧来执行单个小区特定参考符号测量。

124. 发明授权

US08140102B2 Method and apparatus for transmit power calibration in a frequency division multiplexed wireless system 有权
标题翻译：用于频分复用无线系统中发射功率校准的方法和装置
公开(公告)号：US08140102B2
公开(公告)日：2012-03-20
申请号：US11838517
申请日：2007-08-14
申请人： Ravikiran Nory , Edgar Fernandes , Robert Love , Vijay Nangia , Dale Schwent , Kenneth A. Stewart
发明人： Ravikiran Nory , Edgar Fernandes , Robert Love , Vijay Nangia , Dale Schwent , Kenneth A. Stewart
IPC分类号： H04B7/00 , H04B7/185 , H04W24/00 , H04W4/00 , H04J1/00 , H04K1/10
CPC分类号： H04W52/08 , H04B17/13 , H04W52/146 , H04W52/16 , H04W52/50
摘要： The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (320), at a user equipment (120), a signal from a base station (130) in a frequency division multiplexed wireless system and mapping (330), in response to receiving the signal from the base station, a power control calibration region to an uplink symbol in a subframe to establish a mapped uplink symbol using predetermined criteria. The method can also include calibrating (350) a transmit power based on transmission in the calibration region and transmitting (360) data at the calibrated transmit power on at least one other symbol following the mapped uplink symbol.
摘要翻译：本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。该方法可以包括在用户设备（120）处接收（320）来自频分复用无线系统中的来自基站（130）的信号和响应于接收到来自基站的信号的映射（330）功率控制校准区域到子帧中的上行链路符号，以使用预定标准建立映射的上行链路符号。该方法还可以包括基于校准区域中的传输来校准（350）发射功率，并且在所映射的上行链路符号之后的至少一个其他符号上以校准的发射功率发射（360）数据。

125. 发明授权

US07912113B2 Techniques for estimating received signal strength and carrier to interference and noise ratio in OFDM systems 有权
标题翻译：用于估计OFDM系统中的接收信号强度和载波与干扰和噪声比的技术
公开(公告)号：US07912113B2
公开(公告)日：2011-03-22
申请号：US11867802
申请日：2007-10-05
申请人： Krishna Kamal Sayana , Xiangyang Zhuang , Kenneth A. Stewart , Pallav Sudarshan
发明人： Krishna Kamal Sayana , Xiangyang Zhuang , Kenneth A. Stewart , Pallav Sudarshan
IPC分类号： H04L27/30
CPC分类号： H04B17/336 , H04B17/318
摘要： A technique for determining a received signal strength indicator of a target base station at a subscriber station includes performing a discrete Fourier transform on a received signal to provide a transformed signal. In this case, the transformed signal occupies one or more segments of a channel and the one or more segments each include multiple subcarriers. A shift-n cross-correlation is calculated based on the transformed signal and a preamble sequence of the target base station to provide a coarse received signal strength indicator for the target base station.
摘要翻译：用于确定用户站处的目标基站的接收信号强度指示符的技术包括对接收到的信号执行离散付里叶变换以提供经变换的信号。在这种情况下，变换的信号占用信道的一个或多个段，并且一个或多个段各自包括多个子载波。基于变换的信号和目标基站的前导序列来计算移位n互相关，以为目标基站提供粗略的接收信号强度指示符。

126. 发明申请

US20090280747A1 Method and Apparatus for Interference Cancellation in a Wireless Communication System 审中-公开
标题翻译：无线通信系统中干扰消除的方法和装置
公开(公告)号：US20090280747A1
公开(公告)日：2009-11-12
申请号：US12116582
申请日：2008-05-07
申请人： Pallav Sudarshan , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Pallav Sudarshan , Kenneth A. Stewart , Xiangyang Zhuang
IPC分类号： H04B15/00 , H04B1/06
CPC分类号： H04L25/0204 , H04L5/0007 , H04L5/0048 , H04L25/021 , H04L25/0228 , H04L25/0242 , H04L27/2605 , H04L27/2647 , H04W72/085
摘要： A mobile device estimates a data symbol from a received signal by using one or more interference cancellation algorithms. For one interference cancellation algorithm, the mobile device calculates a correction factor by estimating a Doppler speed and a time difference between a first time interval like a preamble symbol and a second time interval like any symbol of interest in an assigned data allocation in the data zone. Using the correction factor, the mobile device updates outdated interference information. The mobile device cancels interference in the received signal distorted by co-channel interference by using the updated interference information. Also, the mobile device is configured to combine results of multiple interference cancellation algorithms based on the applicability of the individual interference cancellation algorithms in particular scenarios.
摘要翻译：移动设备通过使用一个或多个干扰消除算法从接收信号估计数据符号。对于一个干扰消除算法，移动设备通过在数据区域中的分配的数据分配中估计多普勒速度和诸如前导码符号的第一时间间隔和第二时间间隔之间的时间差，像任何感兴趣的符号，。使用校正因子，移动设备更新过时的干扰信息。移动设备通过使用更新的干扰信息来消除由同信道干扰失真的接收信号的干扰。此外，移动设备被配置为基于在特定情况下各个干扰消除算法的适用性来组合多个干扰消除算法的结果。

127. 发明申请

US20090047902A1 METHOD AND APPARATUS FOR TRANSMIT POWER CALIBRATION IN A FREQUENCY DIVISION MULTIPLEXED WIRELESS SYSTEM 有权
标题翻译：频分多址无线系统中发射功率校准的方法与装置
公开(公告)号：US20090047902A1
公开(公告)日：2009-02-19
申请号：US11838536
申请日：2007-08-14
申请人： Ravikiran Nory , Edgar Fernandes , Robert Love , Vijay Nangia , Dale Schwent , Kenneth A. Stewart
发明人： Ravikiran Nory , Edgar Fernandes , Robert Love , Vijay Nangia , Dale Schwent , Kenneth A. Stewart
IPC分类号： H04B7/185
CPC分类号： H04W52/242 , H04B17/13 , H04W52/10 , H04W52/146 , H04W52/228 , H04W52/52
摘要： The present disclosure describes a method and apparatus for transmit power calibration in a frequency division multiplexed wireless system (100). The method may include receiving (315) an uplink scheduling grant at a user equipment (120), establishing (320) a desired power level based on at least the uplink scheduling grant, and setting (325) hardware power settings based on the desired power level. The method may also include transmitting (330) data in a first subframe at a first power level based on the hardware power settings, measuring (335) the first power level in the first subframe, and determining (340) a difference between the desired power level and the measured first power level. The method may additionally include modifying (345) the hardware power settings based on the difference and transmitting (350) at a second power level based on the modified hardware power settings in a next transmission corresponding to the transmission in the first subframe.
摘要翻译：本公开描述了一种用于频分复用无线系统（100）中的发射功率校准的方法和装置。该方法可以包括在用户设备（120）处接收（315）上行链路调度许可，基于至少上行链路调度许可来建立（320）期望的功率电平，并且基于所需的功率来设置（325）硬件功率设置水平。该方法还可以包括基于硬件功率设置以第一功率电平在第一子帧中发送（330）数据，测量（335）第一子帧中的第一功率电平，以及确定（340）期望功率之间的差水平和测量的第一功率水平。该方法可以另外包括基于差异修改（345）硬件功率设置，并且基于在与第一子帧中的传输相对应的下一个传输中的修改的硬件功率设置在第二功率电平上发送（350）。

128. 发明授权

US07471749B2 Channel parameters estimation in a receiver 有权
标题翻译：接收机中的信道参数估计
公开(公告)号：US07471749B2
公开(公告)日：2008-12-30
申请号：US10694464
申请日：2003-10-27
申请人： Kenneth A. Stewart , Raja S. Bachu , Michael E. Buckley , Clint S. Wilkins
发明人： Kenneth A. Stewart , Raja S. Bachu , Michael E. Buckley , Clint S. Wilkins
IPC分类号： H04L25/08
CPC分类号： H04L25/0244 , H04L25/0224 , H04L27/2017 , H04L2025/03407 , H04L2025/03414
摘要： Methods (FIGS. 7 and 8) and corresponding apparatus (200) for estimating a parameter (125) associated with a received signal (120), one method comprising: providing (704, 806) a signal sample (129, 301) corresponding to the received signal (120); processing the signal sample (705, 807) to suppress on channel interference and provide a processed sample or signal estimate; and determining, for example, a delay parameter by comparing (709, 809) the processed sample to a predetermined sample.
摘要翻译：用于估计与接收信号（120）相关联的参数（125）的方法（图7和8）和相应的装置（200），一种方法包括：提供（704,806）对应于接收信号（120）; 处理信号样本（705,807）以抑制信道干扰并提供经处理的采样或信号估计; 以及通过将经处理的样品（709,809）与预定样品进行比较来确定例如延迟参数。

129. 发明授权

US07436811B2 Multicasting data method in a radio communication system 有权
标题翻译：无线电通信系统中的组播数据方法
公开(公告)号：US07436811B2
公开(公告)日：2008-10-14
申请号：US10751080
申请日：2004-01-02
申请人： Padmaja Putcha , Richard C. Burbidge , Zhijun Cai , Kenneth A. Stewart
发明人： Padmaja Putcha , Richard C. Burbidge , Zhijun Cai , Kenneth A. Stewart
IPC分类号： H04L12/28
CPC分类号： H04W72/005 , H04W48/16
摘要： The present invention provides a method for receiving broadcast data in a system where broadcast data is transmitted on a plurality of frequencies. A user device monitors (302) a first frequency (108) for broadcast data to be transmitted on the first frequency. The device receives on the first frequency a notification of a broadcast data session which is to be sent on a second frequency (114) that is different from the first frequency. The device then determines a configuration associated with the second frequency and in accordance with receiving the broadcast data session and then configures (310) to receive the broadcast data session in accordance with the determined configuration. After receiving the broadcast data session, the device returns to monitoring the first frequency.
摘要翻译：本发明提供一种在多个频率上发送广播数据的系统中接收广播数据的方法。用户设备监视（302）用于在第一频率上发送的广播数据的第一频率（108）。设备在第一频率上接收要在与第一频率不同的第二频率（114）上发送的广播数据会话的通知。然后，设备确定与第二频率相关联的配置，并且根据接收广播数据会话，然后根据确定的配置来配置（310）接收广播数据会话。收到广播数据会话后，设备返回监控第一个频率。

130. 发明授权

US06339612B1 Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system 失效
标题翻译：用于在直接序列扩频通信系统中联合检测数据的方法和装置
公开(公告)号：US06339612B1
公开(公告)日：2002-01-15
申请号：US09020970
申请日：1998-02-09
申请人： Kenneth A. Stewart , Yi Qiao
发明人： Kenneth A. Stewart , Yi Qiao
IPC分类号： H04L2730
CPC分类号： H04B1/7105 , H04B7/0854
摘要： Joint detection of data signals occurs in a code division, multiple access (CDMA) communication system as follows: A digital signal processor (315) first extracts a midamble portion of transmitted signal vectors and generates an estimate of the channel response corresponding to each user-antenna pair using a channel estimator (401). In the preferred embodiment, each user's transmission within the communication system comprises either the type-1 or type-2 burst with varying midamble and guard period durations. Next, a convolution processor (402) forms the convolution of the user signature sequence with the channel impulse response estimate associated with each user and each of the antennas (308)-(310). A detector (403) utilizes the set of vectors and creates a set of sub-system matrices and solves the sub-system matrices to extract symbol information from an individual remote unit's transmission. Finally, the detector (403) outputs symbol information for subsequent infrastructure processing.
摘要翻译：数据信号的联合检测发生在如下的码分多址（CDMA）通信系统中：数字信号处理器（315）首先提取发送信号向量的中间码部分，并产生对应于每个用户 - 天线对使用信道估计器（401）。在优选实施例中，通信系统内的每个用户的传输包括具有变化的中间码和保护时段持续时间的类型1或类型2的突发。接下来，卷积处理器（402）形成用户签名序列与与每个用户和每个天线（308） - （310）相关联的信道脉冲响应估计的卷积。检测器（403）利用该组矢量并创建一组子系统矩阵并且解决子系统矩阵以从各个远程单元的传输提取符号信息。最后，检测器（403）输出用于后续基础设施处理的符号信息。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式