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. 发明申请

WO2009049039A1 FAST SQUARE ROOT ALGORITHM FOR MIMO EQUALIZATION 审中-公开
标题翻译：用于MIMO均衡的快速平方根算法
公开(公告)号：WO2009049039A1
公开(公告)日：2009-04-16
申请号：PCT/US2008/079333
申请日：2008-10-09
申请人： QUALCOMM Incorporated , GORE, Dhananjay Ashok , SAMPATH, Hemanth , TEAGUE, Edward Harrison
发明人： GORE, Dhananjay Ashok , SAMPATH, Hemanth , TEAGUE, Edward Harrison
IPC分类号： H04B7/08 , H04L25/03
CPC分类号： H04L25/03159 , H04L25/0204 , H04L25/021 , H04L25/0244 , H04L25/0256 , H04L2025/03414 , H04L2025/03426 , H04L2025/03605
摘要： Systems and methodologies are described for equalizing received signals in a wireless communication environment. Using multiple transmit and/or receive antennas and MIMO technology, multiple data streams can be transmitted within a single tone. During equalization (210), receivers can separate data received within a tone into individual data streams. The equalization process generally is computationally expensive. Equalizer functions include the inverse matrix operation, which can be computed using the fast square root method; however, the fast square root method involves large numbers of computations for a set of matrices, where the size of a matrix in the set of matrices increases with the number of transmit or receive antennas. Utilizing a modification of the fast square root method (208), a subset of the elements of the matrices can be selected and updated to reduce the number and/or complexity of computations. Updating comprises determining a rotation matrix in accordance with a Householder reflection approach.
摘要翻译：描述了用于在无线通信环境中均衡接收信号的系统和方法。使用多个发射和/或接收天线和MIMO技术，可以在单个音调内传输多个数据流。在均衡（210）期间，接收机可以将在一个音调内接收到的数据分离成各自的数据流。均衡过程通常在计算上是昂贵的。均衡器功能包括逆矩阵运算，可以使用快速平方根法计算; 然而，快速平方根方法涉及对于一组矩阵的大量计算，其中矩阵集合中的矩阵的大小随着发射或接收天线的数量而增加。利用快速平方根方法（208）的修改，可以选择和更新矩阵元素的子集，以减少计算的数量和/或复杂度。更新包括根据Householder反射方法确定旋转矩阵。

2. 发明申请

WO2008116016A2 FAST SQUARE ROOT ALGORITHM FOR MIMO EQUALIZATION 审中-公开
标题翻译：用于MIMO均衡的快速平方根算法
公开(公告)号：WO2008116016A2
公开(公告)日：2008-09-25
申请号：PCT/US2008/057545
申请日：2008-03-19
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , GORE, Dhananjay Ashok , TEAGUE, Edward Harrison
发明人： SAMPATH, Hemanth , GORE, Dhananjay Ashok , TEAGUE, Edward Harrison
IPC分类号： H04L25/03
CPC分类号： H04B7/0413 , H04L2025/03414 , H04L2025/03426 , H04L2025/03605
摘要： Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Using multiple transmit and/or receive antennas and MIMO technology, multiple data streams can be transmitted within a single tone. During equalization, receivers can separate data received within a tone into individual data streams. The equalization process generally is computationally expensive. Equalizer functions include the inverse operation, which can be computed using the fast square root method; however, the fast square root method involves large numbers of computations for a set of matrices, where the size of a matrix in the set of matrices increases with the number of transmit or receive antennas. Utilizing a modification of the fast square root method, a subset of the elements of the matrices can be selected and updated to reduce the number and/or complexity of computations.
摘要翻译：描述了促进无线通信环境中的接收信号的均衡的系统和方法。使用多个发射和/或接收天线和MIMO技术，可以在单个音调内传输多个数据流。在均衡期间，接收机可以将音调内接收到的数据分离为单独的数据流。均衡过程通常在计算上是昂贵的。均衡器功能包括逆运算，可以使用快速平方根法计算; 然而，快速平方根方法涉及对于一组矩阵的大量计算，其中矩阵集合中的矩阵的大小随着发射或接收天线的数量而增加。利用快速平方根方法的修改，可以选择和更新矩阵元素的子集，以减少计算的数量和/或复杂度。

3. 发明申请

WO2008118982A1 DIGITAL AND ANALOG POWER CONTROL FOR AN OFDMA/CDMA ACCESS TERMINAL 审中-公开
标题翻译：用于OFDMA / CDMA接入终端的数字和模拟电源控制
公开(公告)号：WO2008118982A1
公开(公告)日：2008-10-02
申请号：PCT/US2008/058307
申请日：2008-03-26
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , TEAGUE, Edward Harrison , GORE, Dhananjay Ashok
发明人： SAMPATH, Hemanth , TEAGUE, Edward Harrison , GORE, Dhananjay Ashok
IPC分类号： H04B7/005
CPC分类号： H04W52/16 , H04W52/08 , H04W52/10 , H04W52/146 , H04W52/325
摘要： Aspects describe controlling a power level for an access terminal in a wireless communication system that utilizes multiple modulation waveforms. The power can be controlled after an Access Grant is received in response to an Access Probe until the mobile device transitions into a steady state. A reference power can be continuously monitored and a setting of a power amplifier can be modified only when the reference power changes. A digital gain of a reverse data channel can be adjusted relative to the reference power level.
摘要翻译：方面描述了在利用多个调制波形的无线通信系统中控制接入终端的功率电平。在接收到访问准则后，可以控制功率，直到移动设备转换到稳定状态。可以连续地监视参考功率，并且仅当参考功率改变时才能修改功率放大器的设置。可以相对于参考功率电平调整反向数据通道的数字增益。

4. 发明申请

WO2008118979A1 DETERMINING PER SECTOR RECEIVED POWER LEVEL 审中-公开
标题翻译：确定每个部门接收的电力水平
公开(公告)号：WO2008118979A1
公开(公告)日：2008-10-02
申请号：PCT/US2008/058303
申请日：2008-03-26
申请人： QUALCOMM Incorporated , SAMPATH, Hemanth , TEAGUE, Edward Harrison , GORE, Dhananjay Ashok
发明人： SAMPATH, Hemanth , TEAGUE, Edward Harrison , GORE, Dhananjay Ashok
IPC分类号： H04B7/005 , H04B17/00
CPC分类号： H04W52/146 , H04W52/10 , H04W52/241 , H04W52/245 , H04W52/246 , H04W52/40
摘要： At a mobile device, a total received power represents signals received from all access points. In order to calculate an appropriate transmit power for communication with a single access point, a mobile device determines a per sector received power level. The mobile device can ascertain a time-domain channel response from each access point pilot signal, ascertain a received digital power level per sector from each access point pilot signal and, based in part on the digital power level, calculate a received power level from each access point. A per sector received power level can be utilized to conserve battery power and/or to reduce interference in a wireless communications network.
摘要翻译：在移动设备处，总接收功率表示从所有接入点接收的信号。为了计算用于与单个接入点通信的适当发射功率，移动设备确定每扇区接收的功率电平。移动设备可以从每个接入点导频信号确定时域信道响应，从每个接入点导频信号确定每扇区的接收数字功率电平，并且部分地基于数字功率电平，从每个接入点导频信号计算接收功率电平切入点。可以利用每扇区接收的功率电平来节省电池功率和/或减少无线通信网络中的干扰。

5. 发明申请

WO2006138581A2 ADAPTIVE SECTORIZATION IN CELLULAR SYSTEMS 审中-公开
标题翻译：细胞系统中的自适应分布
公开(公告)号：WO2006138581A2
公开(公告)日：2006-12-28
申请号：PCT/US2006/023514
申请日：2006-06-15
申请人： QUALCOMM INCORPORATED , GORE, Dhananjay Ashok , GOROKHOV, Alexei , SAMPATH, Hemanth , JI, Tingfang , KADOUS, Tamer
发明人： GORE, Dhananjay Ashok , GOROKHOV, Alexei , SAMPATH, Hemanth , JI, Tingfang , KADOUS, Tamer
IPC分类号： H04Q7/20
CPC分类号： H04W16/00 , H04B7/0408 , H04B7/0695 , H04W16/24 , H04W16/28 , H04W72/046 , H04W72/085
摘要： Apparatuses and methodologies are described that enhance performance in a wireless communication system using beamforming transmissions. According to one aspect, a set of transmit beams are defined that simultaneously provides for space division multiplexing, multiple-input multiple output (MIMO transmission and opportunistic beamforming. The addition of a wide beam guarantees a minimum acceptable performance for all user devices.
摘要翻译：描述了使用波束成形传输来增强在无线通信系统中的性能的装置和方法。根据一个方面，定义了一组发射波束，其同时提供空分多路复用，多输入多输出（MIMO传输和机会波束成形）。增加宽波束保证所有用户设备的最小可接受性能。

6. 发明申请

WO2007050924A1 PRECODING FOR SEGMENT SENSITIVE SCHEDULING IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中分段敏感调度的预测
公开(公告)号：WO2007050924A1
公开(公告)日：2007-05-03
申请号：PCT/US2006/042058
申请日：2006-10-27
申请人： QUALCOMM Incorporated , GORE, Dhananjay, Ashok , SAMPATH, Hemanth , WANG, Jibing , KADOUS, Tamer , BARRIAC, Gwendolyn, D.
发明人： GORE, Dhananjay, Ashok , SAMPATH, Hemanth , WANG, Jibing , KADOUS, Tamer , BARRIAC, Gwendolyn, D.
IPC分类号： H04L5/02 , H04L27/26 , H04B7/06 , H04L1/06 , H04L1/00 , H04L25/02 , H04B1/713
CPC分类号： H04B7/0456 , H04L1/0016 , H04L1/0026 , H04L1/0675 , H04L5/023 , H04L25/0206 , H04L27/2602 , H04L27/2608
摘要： Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.
摘要翻译：示出了使用称为子带并使用预编码的段来增强在无线通信系统中的性能的技术。根据一个方面，用于传输到接入终端的带宽被限制到比可用于传输到接入终端的带宽的优选带宽，并且将与受限带宽内的子载波相关的预编码信息提供给发射机。与受限带宽内的子载波相关的预编码信息提供关于相对于不同子带的前向链路信道属性的反馈，并且可以在与带宽相关联的信道上反馈。

7. 发明申请

WO2006099349A1 SYSTEMS AND METHODS FOR BEAMFORMING AND RATE CONTROL IN A MULTI-INPUT MULTI-OUTPUT COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于多输入多输出通信系统中的波束成像和速率控制的系统和方法
公开(公告)号：WO2006099349A1
公开(公告)日：2006-09-21
申请号：PCT/US2006/008987
申请日：2006-03-09
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , KADOUS, Tamer , GOROKHOV, Alexei , GORE, Dhananjay Ashok
发明人： SAMPATH, Hemanth , KADOUS, Tamer , GOROKHOV, Alexei , GORE, Dhananjay Ashok
IPC分类号： H04L27/26
CPC分类号： H04B7/0417 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04L27/2601
摘要： Methods and apparatuses are disclosed that determine a type of channel information based upon whether a wireless device is scheduled to receive symbols. In addition, a determination may be as to a number of hop periods to determine the type of channel information. Further, a distance between hop regions may be utilized to determine a type of channel information.
摘要翻译：公开了基于无线设备是否被调度为接收符号来确定信道信息的类型的方法和装置。此外，确定可以确定频道信息的类型的跳数周期数。此外，可以利用跳频区域之间的距离来确定频道信息的类型。

8. 发明申请

WO2011017036A1 SELF-INTERFERENCE CANCELLATION FOR MULTICHANNEL MODEMS 审中-公开
标题翻译：用于多通道模式的自干扰消除
公开(公告)号：WO2011017036A1
公开(公告)日：2011-02-10
申请号：PCT/US2010/043175
申请日：2010-07-24
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , GORE, Dhananjay Ashok , JONES IV, Vincent Knowles
发明人： SAMPATH, Hemanth , GORE, Dhananjay Ashok , JONES IV, Vincent Knowles
IPC分类号： H04B1/52
CPC分类号： H04B1/525 , H04B1/0032
摘要： A method for detecting and reducing aliasing is described. The method may be implemented by a first wireless device. A first signal may be transmitted on a first frequency channel. A second signal may be received on a second frequency channel. The second signal may be received concurrently with the transmission of the first signal. Aliasing of the first signal on the second signal may be detected. Aliasing may be reduced.
摘要翻译：描述了一种用于检测和减少混叠的方法。该方法可以由第一无线设备来实现。可以在第一频率信道上发送第一信号。可以在第二频率信道上接收第二信号。可以与第一信号的传输同时接收第二信号。可以检测第二信号上的第一信号的混叠。混淆可能会减少。

9. 发明申请

WO2006102639A1 SYSTEMS AND METHODS FOR BEAMFORMING FEEDBACK IN MULTI ANTENNA COMMUNICATION SYSTEMS 审中-公开
标题翻译：在多天线通信系统中建立反馈的系统和方法
公开(公告)号：WO2006102639A1
公开(公告)日：2006-09-28
申请号：PCT/US2006/010962
申请日：2006-03-24
申请人： QUALCOMM INCORPORATED , SAMPATH, Hemanth , KHANDEKAR, Aamod , GORE, Dhananjay Ashok , GOROKHOV, Alexei , KADOUS, Tamer
发明人： SAMPATH, Hemanth , KHANDEKAR, Aamod , GORE, Dhananjay Ashok , GOROKHOV, Alexei , KADOUS, Tamer
IPC分类号： H04B7/06
CPC分类号： H04B7/0634 , H04B7/0417 , H04B7/0617 , H04B7/063 , H04B7/0632 , H04B7/0639 , H04B7/0645
摘要： Methods and apparatuses are disclosed that determine whether to feedback, and the amount of feedback, with respect to eigenbeam information based upon channel resources. Additionally, methods and apparatuses are disclosed that determine whether to feedback, and the amount of feedback, with respect to eigenbeam information based upon channel information and changes in channel information.
摘要翻译：公开了基于信道资源来确定是否反馈和相对于本征光束信息的反馈量的方法和装置。此外，公开了基于频道信息和频道信息的改变来确定是否反馈和相对于特征波束信息的反馈量的方法和装置。

10. 发明申请

WO2008116172A2 SIMPLIFIED EQUALIZATION FOR CORRELATED CHANNELS IN OFDMA 审中-公开
标题翻译： OFDMA中相关通道的简化均衡
公开(公告)号：WO2008116172A2
公开(公告)日：2008-09-25
申请号：PCT/US2008/057864
申请日：2008-03-21
申请人： QUALCOMM Incorporated , BUDIANU, Petru Cristian , SAMPATH, Hemanth , GOROKHOV, Alexei , GORE, Dhananjay Ashok
发明人： BUDIANU, Petru Cristian , SAMPATH, Hemanth , GOROKHOV, Alexei , GORE, Dhananjay Ashok
IPC分类号： H04L5/02 , H04L25/03 , H04L25/02 , H04L27/26
CPC分类号： H04L5/023 , H04L25/0232 , H04L25/0244 , H04L25/03019 , H04L27/2647 , H04L2025/03414 , H04L2025/03426
摘要： Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Multiple transmit and/or receive antennas and utilize MIMO technology to enhance performance. A single tile of transmitted data, including a set of modulation symbols, can be received at multiple receive antennas, resulting in multiple tiles of received modulation symbols. Corresponding modulation symbols from multiple received tiles can be processed as a function of channel and interference estimates to generate a single equalized modulation symbol. Typically, the equalization process is computationally expensive. However, the channels are highly correlated. This correlation is reflected in the channel estimates and can be utilized to reduce complex equalization operations. In particular, a subset of the equalizers can be generated based upon the equalizer function and the remainder can be generated using interpolation. In addition, the equalizer function itself can be simplified.
摘要翻译：描述了促进无线通信环境中的接收信号的均衡的系统和方法。多个发射和/或接收天线并利用MIMO技术来提高性能。可以在多个接收天线处接收包括一组调制符号的传输数据的单个瓦片，从而导致接收到的调制符号的多个瓦片。来自多个接收瓦片的相应调制符号可以作为信道和干扰估计的函数来处理，以生成单个均衡调制符号。通常，均衡过程在计算上是昂贵的。然而，这些渠道是高度相关的。该相关性反映在信道估计中并且可以用于减少复数均衡操作。特别地，可以基于均衡器功能生成均衡器的子集，并且可以使用插值来生成余数。此外，均衡器功能本身可以简化。

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