专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07058146B2 Method and wireless communications systems using coordinated transmission and training for interference mitigation 失效
公开(公告)号：US07058146B2
公开(公告)日：2006-06-06
申请号：US09876896
申请日：2001-06-06
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr.
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr.
IPC分类号： H04L1/02 , H04B7/10
CPC分类号： H04B7/0842 , H04B7/086 , H04L1/06
摘要： A method for interference mitigation in a wireless communication system having multiple transmitters and receivers by introducing transmission time delays between the transmission of signals from the individual transmitters to ensure coherent reception of the signals at a specific point in the coverage area, such as at a center of distribution of the receivers. To further aid in interference mitigation the signals are assigned training patterns chosen to be distinguishable by the receiver and to optimize interference mitigation. The training patterns can be selected based on a feedback parameter, e.g., a measure of the quality of interference mitigation obtained from the receiver. The present method can be used in wireless communication systems which re-use frequencies including TDMA, CDMA, FDMA, OFDMA or other multiplex communication systems using a multiple access method or a combination of such methods.

2. 发明授权

US06377636B1 Method and wireless communications system using coordinated transmission and training for interference mitigation 失效
标题翻译：方法和无线通信系统采用协调传输和训练进行干扰减轻
公开(公告)号：US06377636B1
公开(公告)日：2002-04-23
申请号：US09432295
申请日：1999-11-02
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr.
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr.
IPC分类号： H04L100
CPC分类号： H04B7/0842 , H04B7/086 , H04L1/06
摘要： A method for interference mitigation in a wireless communication system having multiple transmitters and receivers by introducing transmission time delays between the transmission of signals from the individual transmitters to ensure coherent reception of the signals at a specific point in the coverage area, such as at a center of distribution of the receivers. To further aid in interference mitigation the signals are assigned training patterns chosen to be distinguishable by the receiver and to optimize interference mitigation. The training patterns can be selected based on a feedback parameter, e.g., a measure of the quality of interference mitigation obtained from the receiver. The present method can be used in wireless communication systems which re-use frequencies including TDMA, CDMA, FDMA, OFDMA or other multiplex communication systems using a multiple access method or a combination of such methods.
摘要翻译：一种用于具有多个发射机和接收机的无线通信系统中的干扰减轻的方法，其通过在来自各个发射机的信号的传输之间引入传输时间延迟，以确保覆盖区域中的特定点处的信号的相干接收，例如在中心的接收机的分配。为了进一步帮助干扰减轻，信号被分配训练模式，所选择的训练模式被接收机区分，并优化干扰减轻。可以基于反馈参数来选择训练模式，例如，从接收器获得的干扰抑制的质量的度量。本方法可以用于使用多址接入方法或这些方法的组合重复使用包括TDMA，CDMA，FDMA，OFDMA或其他多路复用通信系统的频率的无线通信系统。

3. 发明授权

US06377632B1 Wireless communication system and method using stochastic space-time/frequency division multiplexing 失效
标题翻译：使用随机时空/频分复用的无线通信系统和方法
公开(公告)号：US06377632B1
公开(公告)日：2002-04-23
申请号：US09490698
申请日：2000-01-24
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr. , Shilpa Talwar , Helmut Bölcskei
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , Jose Tellado , Robert W. Heath, Jr. , Shilpa Talwar , Helmut Bölcskei
IPC分类号： H04B706
CPC分类号： H04B7/0669 , H04B7/0671 , H04L1/0606 , H04L1/0625 , H04L5/0023
摘要： A method and apparatus for wireless transmission of a digital bit stream. The present method employs diversity techniques to minimize multipath fading. Digital bits are converted into symbols and the symbols are provided to a number of diversity branches. Each diversity branch has its own antenna. The symbols sent to each diversity branch may be multiplied by a different phase factor or amplitude factor. The phase factors and amplitude factors may be randomly selected. Also, wireless channels can be monitored for channel quality. In this case, the channel quality measurements are used to select the phase factors and the amplitude factors. Also, the symbols can be grouped into frames before transmission. In this case, the frames can be multiplied by matrices comprising phase factors and amplitude factors. Also in this case, the frames can undergo cyclic shifting, which provides an additional measure of diversity.
摘要翻译：一种用于数字比特流的无线传输的方法和装置。本方法采用分集技术来最小化多路径衰落。数字位被转换为符号，符号被提供给多个分集分支。每个分集分支都有自己的天线。发送到每个分集支路的符号可以乘以不同的相位因子或振幅因子。可以随机选择相位因子和振幅因子。此外，可以监控无线信道的信道质量。在这种情况下，通道质量测量用于选择相位因子和振幅因子。此外，符号可以在传输之前被分组成帧。在这种情况下，帧可以乘以包括相位因子和幅度因子的矩阵。同样在这种情况下，帧可以经历循环移位，这提供了多样性的附加度量。

4. 发明授权

US06400699B1 Transmission scheduler for a multiple antenna wireless cellular network 失效
标题翻译：用于多天线无线蜂窝网络的传输调度器
公开(公告)号：US06400699B1
公开(公告)日：2002-06-04
申请号：US09660246
申请日：2000-09-12
申请人： Manish Airy , Baraa Al-Dabagh , Jose Tellado , Partho Mishra , John Fan , Peroor K. Sebastian , Arogyaswami J. Paulraj
发明人： Manish Airy , Baraa Al-Dabagh , Jose Tellado , Partho Mishra , John Fan , Peroor K. Sebastian , Arogyaswami J. Paulraj
IPC分类号： H04Q700
CPC分类号： H04W72/1263 , H04B7/0613 , H04L5/0023 , H04L5/0044 , H04L5/0064
摘要： The invention includes an apparatus and method for scheduling wireless transmission of data blocks between at least one antenna of a base transceiver station and multiple subscriber units. The scheduling can be based on the quality of a transmission link between the base station antennas and the subscriber units, the amount of data requested by the subscriber units, and/or the type of data requested by the subscriber units. The scheduling generally includes assigning frequency blocks and time slots to each of the subscriber units for receiving or transmitting data blocks. The invention includes a method for transmitting data streams between a base transceiver station and a plurality of subscribers. The method includes receiving protocol data units from a network, creating sub-protocol data units from the protocol data units, and once per a frame of time, generating a schedule that designates time slots and pre-defined frequency blocks in which each one of the plurality of subscribers is to receive each of the sub-protocol data units from a plurality of base station transceiver antennas. The invention can further include transmitting the schedule to each of the subscribers, and the plurality of base station transceiver antennas transmitting the sub-protocol data units according to the schedule. The invention can further include selecting at least one transmission mode for each subscriber. The transmission mode dictating the type of modulation and/or coding used during transmission of the sub-protocol data units.
摘要翻译：本发明包括一种用于在基站收发台的至少一个天线和多个用户单元之间调度数据块的无线传输的装置和方法。调度可以基于基站天线和用户单元之间的传输链路的质量，用户单元请求的数据量和/或用户单元请求的数据的类型。调度通常包括向每个用户单元分配频率块和时隙以用于接收或发送数据块。本发明包括一种在基站和多个用户之间传输数据流的方法。该方法包括从网络接收协议数据单元，从协议数据单元创建子协议数据单元，并且每一帧一次生成指定时隙的调度和预定义的频率块，其中每个多个用户将从多个基站收发天线接收每个子协议数据单元。本发明还可以包括根据日程安排向每个用户以及多个基站收发天线发送该子协议数据单元。本发明还可以包括为每个用户选择至少一个传输模式。传输模式指示在子协议数据单元的传输期间使用的调制和/或编码的类型。

5. 发明授权

US06351499B1 Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter 有权
标题翻译：使用多个天线的方法和无线系统以及最大化通信参数的自适应控制
公开(公告)号：US06351499B1
公开(公告)日：2002-02-26
申请号：US09464372
申请日：1999-12-15
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
IPC分类号： H04B702
CPC分类号： H04B7/0891 , H01Q1/246 , H01Q3/2605 , H04B7/0669 , H04B7/0673 , H04B7/0697 , H04B7/0857 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L1/0606 , H04L1/0618
摘要： A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.
摘要翻译：使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量，信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统（包括具有多个接入技术，如TDMA，FDMA，CDMA，OFDMA）。首先处理数据以产生并行空间复用流SMi，其中i = 1。。。 k，其被转换或映射到发射信号TSp，其中p = 1。。。 M，被分配用于从M个发射天线发射。相应的接收信号RSj，其中j = 1。。。 N由接收机的N个接收天线接收并且用于评估质量参数，诸如包括SINR，SNR，功率电平，电平穿越率，预定阈值的信号的电平穿越持续时间和接收的统计信号参数阈值或数据的参数，例如BER或分组错误率。质量参数用于自适应地调整k以及其他参数，例如编码和映射到发射天线，使得信道的通信参数最大化。

6. 再颁专利

USRE44959E1 Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter 有权
标题翻译：使用多个天线的方法和无线系统以及最大化通信参数的自适应控制
公开(公告)号：USRE44959E1
公开(公告)日：2014-06-24
申请号：US10702053
申请日：2003-11-05
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04B7/0891 , H01Q1/246 , H01Q3/2605 , H04B7/0669 , H04B7/0673 , H04B7/0697 , H04B7/0857 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L1/0606 , H04L1/0618
摘要： A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.
摘要翻译：使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量，信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统（包括具有多个接入技术，如TDMA，FDMA，CDMA，OFDMA）。首先处理数据以产生并行空间复用流SMi，其中i = 1。。。 k，其被转换或映射到发射信号TSp，其中p = 1。。。 M，被分配用于从M个发射天线发射。相应的接收信号RSj，其中j = 1。。。 N由接收机的N个接收天线接收并且用于评估质量参数，诸如包括SINR，SNR，功率电平，电平穿越率，预定阈值的信号的电平穿越持续时间和接收的统计信号参数阈值或数据的参数，例如BER或分组错误率。质量参数用于自适应地调整k以及其他参数，例如编码和映射到发射天线，使得信道的通信参数最大化。

7. 发明授权

US06711412B1 Interference mitigation in wireless communications by training of interfering signals 有权
标题翻译：通过干扰信号训练对无线通信中的干扰减轻
公开(公告)号：US06711412B1
公开(公告)日：2004-03-23
申请号：US09687965
申请日：2000-10-13
申请人： Jose Tellado , Peroor K. Sebastian
发明人： Jose Tellado , Peroor K. Sebastian
IPC分类号： H04B1500
CPC分类号： H04L27/2601
摘要： A method and wireless communication system for identifying one or more undesired signals at a multiple input receive unit receiving a desired signal or several desired signals and the undesired signal or signals. A separability condition between the desired signal and undesired signal is provided to enable that the undesired signal can be identified at the multiple input receive unit. The separability condition includes the use of substantially coherent reception at the receive unit and the use of separable training patterns for the desired and undesired signals. Zero tones are included in desired and undesired signals to further enhance signal separability. Signal training at the receive unit is used to derive the corresponding channel matrices for the interferers and mitigate their effects.
摘要翻译：一种用于在多输入接收单元处识别一个或多个不期望信号的方法和无线通信系统，所述多个输入接收单元接收期望信号或多个期望信号以及不期望的信号或信号提供期望信号和非期望信号之间的可分离性条件，以使得可以在多输入接收单元处识别出不需要的信号。可分离性条件包括在接收单元处使用基本一致的接收，以及使用可分离的训练模式用于期望的和不期望的信号。零色调包含在所需和不需要的信号中，以进一步增强信号分离性。接收单元的信号训练用于导出干扰源的相应信道矩阵，并减轻其影响。

8. 发明授权

US09755842B2 Managing service user discovery and service launch object placement on a device 有权
公开(公告)号：US09755842B2
公开(公告)日：2017-09-05
申请号：US13441821
申请日：2012-04-06
申请人： Gregory G. Raleigh , Jeffrey Green , Jose Tellado
发明人： Gregory G. Raleigh , Jeffrey Green , Jose Tellado
IPC分类号： H04L29/06 , H04L12/14 , H04M15/00 , H04W4/24 , H04W4/26 , H04W4/00 , H04W4/02 , H04L12/24
CPC分类号： H04L12/14 , G06F15/177 , H04L41/0893 , H04L41/5003 , H04L41/5025 , H04M15/00 , H04M15/58 , H04W4/24 , H04W4/50 , H04W4/60
摘要： Methods and apparatuses to manage service user discovery and service launch object placement on a device. A method comprising: obtaining information to assist in identifying a portion of a user interface of a wireless device, the wireless device communicatively coupled to a network system over a wireless access network; determining a differentiating attribute of the identified portion of the user interface; obtaining one or more service launch objects for placement in the identified portion of the user interface; and sending configuration information to the wireless device over the wireless access network to assist the wireless device in placing the one or more service launch objects in the identified portion of the user interface.

9. 发明申请

US20120289147A1 DISTRIBUTING CONTENT AND SERVICE LAUNCH OBJECTS TO MOBILE DEVICES 有权
标题翻译：分配内容和服务移动对象到移动设备
公开(公告)号：US20120289147A1
公开(公告)日：2012-11-15
申请号：US13441815
申请日：2012-04-06
申请人： Gregory G. RALEIGH , Jose Tellado , Jeffrey Green
发明人： Gregory G. RALEIGH , Jose Tellado , Jeffrey Green
IPC分类号： H04H40/00
CPC分类号： H04N21/41407 , H04L67/2847 , H04N21/2402 , H04N21/25808 , H04N21/25866 , H04N21/2668 , H04N21/4312 , H04N21/478 , H04N21/485 , H04N21/4882 , H04N21/6125 , H04N21/6547 , H04N21/812 , H04W4/50
摘要： Embodiments of methods, systems and apparatuses for distributing content over a communication network are disclosed. One method includes managing, by at least one content distribution server, a plurality of content, assisting in preloading at least a portion of the content to a storage element associated with a wireless device, identifying a portion of a user interface of the wireless device, and sending configuration information to the wireless device, the configuration information configured to assist the wireless device in placing, in the identified portion of the user interface, a service launch object that launches the content.
摘要翻译：公开了通过通信网络分发内容的方法，系统和装置的实施例。一种方法包括由至少一个内容分发服务器管理多个内容，辅助将至少一部分内容预加载到与无线设备相关联的存储元件，识别无线设备的用户界面的一部分，以及向所述无线设备发送配置信息，所述配置信息被配置为辅助所述无线设备在所述用户界面的所识别的部分中放置启动所述内容的服务启动对象。

10. 发明授权

US07957456B2 Selection of filter coefficients for tranceiver non-linearity signal cancellation 有权
标题翻译：滤波器系数的选择用于收发器非线性信号消除
公开(公告)号：US07957456B2
公开(公告)日：2011-06-07
申请号：US11725528
申请日：2007-03-19
申请人： Dariush Dabiri , Jose Tellado
发明人： Dariush Dabiri , Jose Tellado
IPC分类号： H04B1/38 , H03H7/40
CPC分类号： H04B1/525 , H03H17/0261 , H04L25/03038
摘要： Embodiments of a method and apparatus for selecting coefficients of a non-linear filter are disclosed. The non-linear filter receives a transmit signal and generates a non-linear replica signal of a transmit DAC of a transceiver. The method include applying a plurality of periodic test pattern signals to inputs of the transmit DAC, wherein the periodic test pattern signals include a stream of symbols. Receive symbols are collected at an output of a receiver ADC of the transceiver resulting from the plurality of periodic test pattern signals. A non-linear map is generated that provides a value for each of n consecutive symbols input to the transmit DAC. Coefficients of the non-linear filter are selected based on the non-linear map.
摘要翻译：公开了一种用于选择非线性滤波器系数的方法和装置的实施例。非线性滤波器接收发射信号并产生收发器的发射DAC的非线性复制信号。该方法包括将多个周期性测试模式信号应用于发射DAC的输入，其中周期性测试模式信号包括符号流。在多个周期性测试图形信号产生的收发器的接收器ADC的输出端收集接收符号。生成非线性映射，为输入到发送DAC的n个连续符号中的每一个提供一个值。基于非线性映射来选择非线性滤波器的系数。

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