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公开(公告)号：US07966011B2
公开(公告)日：2011-06-21
申请号：US12054175
申请日：2008-03-24
IPC分类号： H04W24/00
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 lever 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。 移动设备可以确定来自每个接入点导频信号的时域信道响应，从每个接入点导频信号确定每扇区接收到的数字功率控制器，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每个接入点导频信号的接收功率电平 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。
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2.发明授权公开(公告)号：US08095166B2
公开(公告)日：2012-01-10
申请号：US12055264
申请日：2008-03-25
IPC分类号： H04B7/00
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。
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公开(公告)号：US20110026567A1
公开(公告)日：2011-02-03
申请号：US12510474
申请日：2009-07-28
IPC分类号： H04B1/38
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。
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公开(公告)号：US20080242294A1
公开(公告)日：2008-10-02
申请号：US12054175
申请日：2008-03-24
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 lever 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。 移动设备可以确定来自每个接入点导频信号的时域信道响应，从每个接入点导频信号确定每扇区接收到的数字功率控制器，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每个接入点导频信号的接收功率电平 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。
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5.发明授权Systems and methods for beamforming feedback in multi antenna communication systems 有权多天线通信系统中波束成形反馈的系统和方法公开(公告)号：US09154211B2
公开(公告)日：2015-10-06
申请号：US11233844
申请日：2005-09-21
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。
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6.发明授权公开(公告)号：US08639190B2
公开(公告)日：2014-01-28
申请号：US11553870
申请日：2006-10-27
IPC分类号： H04B1/00
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。
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公开(公告)号：US08411732B2
公开(公告)日：2013-04-02
申请号：US12041616
申请日：2008-03-03
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。
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公开(公告)号：US08379697B2
公开(公告)日：2013-02-19
申请号：US12510474
申请日：2009-07-28
IPC分类号： H04B1/38
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。
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公开(公告)号：US20080298452A1
公开(公告)日：2008-12-04
申请号：US12041616
申请日：2008-03-03
IPC分类号： H04L27/01
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。
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10.发明授权公开(公告)号：US09246560B2
公开(公告)日：2016-01-26
申请号：US11186697
申请日：2005-07-20
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.
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