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11. 发明申请

US20050074080A1 Weight generation method for multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining 有权
标题翻译：利用基于RF和基带信号加权和组合的多天线通信系统的权重生成方法
公开(公告)号：US20050074080A1
公开(公告)日：2005-04-07
申请号：US10835255
申请日：2004-04-29
申请人： Severine Catreux , Vinko Erceg , Pieter Roux , Pieter Rooyen , Jack Winters
发明人： Severine Catreux , Vinko Erceg , Pieter Roux , Pieter Rooyen , Jack Winters
IPC分类号： H04B7/005 , H04B7/06 , H04B7/08 , H04W52/42 , H04B7/02
CPC分类号： H04B7/0857 , H04B7/0615 , H04B7/0848
摘要： A signal weighting and combining method implemented within a receiver having a plurality of receive antennas is disclosed herein. Each receive antenna is disposed to produce a received RF signal in response to a transmitted RF signal received through a channel. The method includes weighting the plurality of received RF signals produced by the antennas in accordance with a corresponding plurality of RF weighting values selected to maximize an output signal-to-noise ratio of the receiver averaged over the channel, thereby forming a plurality of weighted RF signals. The method further includes combining ones of the plurality of weighted RF signals in order to form one or more combined RF signals. A similar splitting and weighting method capable of being implemented within a transmitter having a plurality of transmit antennas is also disclosed.
摘要翻译：本文公开了在具有多个接收天线的接收机内实现的信号加权和组合方法。每个接收天线被布置成响应于通过信道接收的发射的RF信号产生接收的RF信号。该方法包括根据所选择的对应的多个RF加权值对由天线产生的多个接收到的RF信号进行加权，以使通道上平均的接收机的输出信噪比最大化，从而形成多个加权RF 信号。该方法还包括组合多个加权RF信号中的一个，以便形成一个或多个组合RF信号。还公开了能够在具有多个发射天线的发射机内实现的类似的分离和加权方法。

12. 发明申请

US20050053164A1 System and method for RF signal combining and adaptive bit loading for data rate maximization in multi-antenna communication systems 有权
标题翻译：用于射频信号组合和自适应比特加载的系统和方法，用于多天线通信系统中的数据速率最大化
公开(公告)号：US20050053164A1
公开(公告)日：2005-03-10
申请号：US10886510
申请日：2004-07-07
申请人： Severine Catreux , Vinko Erceg , Pieter Roux , Pieter Rooyen , Jack Winters
发明人： Severine Catreux , Vinko Erceg , Pieter Roux , Pieter Rooyen , Jack Winters
IPC分类号： H04B7/06 , H04B7/08 , H04K1/10 , H04L1/00 , H04L1/02 , H04L27/26
CPC分类号： H04L1/0002 , H04B7/0615 , H04B7/0842 , H04L27/2608
摘要： A system and method for generating weight values based on maximum data rate for weighting elements included within signal weighting and combining arrangements used in various multi-antenna transmitter and receiver structures is disclosed herein. Weighting values for a given signal combining arrangement are set so as to maximize an output data rate of the applicable multi-antenna system in the presence of adaptive bit loading of the subcarriers of a transmitted signal. The disclosed techniques may be employed to maximize a data rate of a multi-antenna communication system by using adaptive bit loading and RF and baseband weighting schemes. In this case a search is conducted over various combinations of RF and baseband weights in order to find the weight combination which, when adaptive bit loading is also employed, maximizes the data rate.
摘要翻译：本文公开了一种用于基于包括在信号加权中的加权元件的最大数据速率和在各种多天线发射机和接收机结构中使用的组合布置来生成权重值的系统和方法。设定给定信号组合装置的加权值，以便在存在发射信号的子载波的自适应位加载的情况下，最大化可应用的多天线系统的输出数据速率。所公开的技术可以用于通过使用自适应比特加载和RF和基带加权方案来最大化多天线通信系统的数据速率。在这种情况下，对RF和基带权重的各种组合进行搜索，以便找到当采用自适应比特加载时的权重组合，使数据速率最大化。

13. 发明申请

US20070064829A1 Method and system for a simplified user group selection scheme with finite-rate channel state information feedback for FDD multiuser MIMO downlink transmission 有权
标题翻译：用于FDD多用户MIMO下行链路传输的有限速率信道状态信息反馈的简化用户组选择方案的方法和系统
公开(公告)号：US20070064829A1
公开(公告)日：2007-03-22
申请号：US11232340
申请日：2005-09-21
申请人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
发明人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
IPC分类号： H04L1/02
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0626 , H04B7/0643 , H04W52/42
摘要： Certain embodiments of the invention may be found in a method and system for a simplified user group selection scheme with finite-rate channel state information feedback for frequency division duplex (FDD) multiuser multiple-input-multiple-output (MIMO) downlink transmission. Aspects of the method may include selecting, from a plurality of users, a first user having a channel gain that is greater than a channel gain corresponding to a remaining portion of the plurality of users. At least a second user may be selected from a portion of the remaining portion of the plurality of users. The selected at least the second user has a channel direction that may be approximately orthogonal to that of the first user. The channel gain may be defined by a quantized channel gain. A quantized channel direction of the selected first user may be determined for the selecting the at least the second user.
摘要翻译：可以在用于频分双工（FDD）多用户多输入多输出（MIMO）下行链路传输的有限速率信道状态信息反馈的简化用户组选择方案的方法和系统中找到本发明的某些实施例。该方法的方面可以包括从多个用户中选择具有大于与多个用户的剩余部分相对应的信道增益的信道增益的第一用户。可以从多个用户的剩余部分的一部分中选择至少第二用户。所选择的至少第二用户具有可以与第一用户的频道方向近似正交的频道方向。信道增益可以由量化的信道增益来定义。可以确定所选择的第一用户的量化信道方向用于选择至少第二用户。

14. 发明申请

US20070066331A1 Method and system for a double search user group selection scheme with range reduction in TDD multiuser MIMO downlink transmission 有权
标题翻译：用于TDD多用户MIMO下行链路传输的范围缩减的双重搜索用户组选择方案的方法和系统
公开(公告)号：US20070066331A1
公开(公告)日：2007-03-22
申请号：US11231586
申请日：2005-09-21
申请人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
发明人： Jun Zheng , Chengjin Zhang , Pieter Rooyen
IPC分类号： H04B7/00 , H04Q7/20
CPC分类号： H04B7/0452 , H04B7/0408 , H04B7/0413 , H04L5/1469
摘要： Certain aspects of a method and system for processing signals in a communication system may include maximizing system capacity for a time division duplex (TDD) multiple-input multiple-output (MIMO) system, based on reducing a search range within which to find a group of signals having maximum channel gain. At least one of: a first signal for a first user and a second signal for a second user may be selected, which are both within the reduced search range, and which provides a maximum system capacity. The first signal for the first user may be selected from the reduced search range corresponding to a channel gain that is greater than a channel gain corresponding to a remaining portion of the reduced search range. The reduced search range may be generated by sorting a plurality of signals based on a channel gain corresponding to each of the plurality of signals.
摘要翻译：用于处理通信系统中的信号的方法和系统的某些方面可以包括：基于减少在其中寻找组的搜索范围来最大化时分双工（TDD）多输入多输出（MIMO）系统的系统容量的信号具有最大的信道增益。可以选择以下中的至少一个：可以选择第一用户的第一信号和第二用户的第二信号，这两者都在缩小搜索范围内，并且提供最大的系统容量。用于第一用户的第一信号可以从对应于比还原搜索范围的剩余部分对应的信道增益大的信道增益的缩小搜索范围中选择。可以通过基于与多个信号中的每个信号相对应的信道增益对多个信号进行排序来生成缩小搜索范围。

15. 发明申请

US20070066238A1 Double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback 有权
标题翻译：双重搜索用户组选择方案，采用有限速率信道状态信息反馈的FDD多用户MIMO下行传输范围缩小
公开(公告)号：US20070066238A1
公开(公告)日：2007-03-22
申请号：US11232369
申请日：2005-09-21
申请人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
发明人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04B7/0626 , H04B7/0408 , H04B7/0452 , H04B7/0617
摘要： Aspects of a double search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise maximizing system capacity using feedback information for a plurality of signals in a frequency division duplex system to reduce a search range within which a group of signals having maximum channel gain are located. The feedback information may comprise quantized gain for the signals. Quantized channel direction for the signals within the reduced search range may be requested and received by the transmitter. One or two signals from the reduced search range that maximizes system capacity may be selected. The receivers associated with these signals may then be selected as the user group.
摘要翻译：提供了具有有限速率信道状态信息反馈的FDD多用户MIMO下行链路传输的范围缩小的双重搜索用户组选择方案。该方法可以包括使用频分双工系统中的多个信号的反馈信息来最大化系统容量，以减少具有最大信道增益的一组信号所在的搜索范围。反馈信息可以包括信号的量化增益。减少的搜索范围内的信号的量化信道方向可以由发射机请求和接收。可以选择使系统容量最大化的缩小搜索范围的一个或两个信号。然后可以选择与这些信号相关联的接收机作为用户组。

16. 发明申请

US20070066237A1 Method and system for greedy user group selection with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback 有权
标题翻译：用于具有有限速率信道状态信息反馈的FDD多用户MIMO下行传输的范围缩减的贪心用户组选择的方法和系统
公开(公告)号：US20070066237A1
公开(公告)日：2007-03-22
申请号：US11232362
申请日：2005-09-21
申请人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
发明人： Chengjin Zhang , Jun Zheng , Pieter Rooyen
IPC分类号： H04B7/00 , H04B1/00
CPC分类号： H04B7/0452 , H04B7/0626 , H04B7/0643 , H04L1/0625 , H04L1/0693 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Aspects of a greedy search user group selection scheme with range reduction for FDD multiuser MIMO downlink transmission with finite-rate channel state information feedback are provided. The method may comprise receiving feedback information via a communication channel for a plurality of users in a frequency division duplex system. The system capacity may be maximized using the feedback information based on a signal from a single user within a reduced search range or based on the signal from the single user and at least one other signal from another user within a remaining portion of the search range. The feedback information may comprise quantized gain and/or direction of the channel state information of the users.
摘要翻译：提供了具有有限速率信道状态信息反馈的FDD多用户MIMO下行链路传输的范围缩小的贪婪搜索用户组选择方案。该方法可以包括经由频分双工系统中的多个用户的通信信道接收反馈信息。可以使用基于在缩小搜索范围内来自单个用户的信号的反馈信息或者基于来自单个用户的信号以及在搜索范围的剩余部分内的来自另一用户的至少一个其他信号来使系统容量最大化。反馈信息可以包括用户的信道状态信息的量化增益和/或方向。

17. 发明申请

US20060073823A1 Method and system for channel estimation in a single channel MIMO system with multiple RF chains for WCDMA/HSDPA 有权
公开(公告)号：US20060073823A1
公开(公告)日：2006-04-06
申请号：US11173305
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
发明人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
IPC分类号： H04Q7/20
CPC分类号： H04L25/0204 , H04B1/712
摘要： Aspects of a method and system for channel estimation in a MIMO communication system with multiple RF chains for WCDMA/HSDPA may comprise receiving a plurality of communication signals from a plurality of transmit antennas. A plurality of vectors of baseband combined channel estimates may be generated based on phase rotation of the received plurality of communication signals. A matrix of processed baseband combined channel estimates may be generated based on the generated plurality of vectors of baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated based on the generated plurality of vectors of baseband combined channel estimates. An amplitude and a phase of at least a portion of the received plurality of communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.

18. 发明申请

US20060072629A1 Method and system for implementing a single weight (SW) single channel (SC) MIMO system with no insertion loss 有权
公开(公告)号：US20060072629A1
公开(公告)日：2006-04-06
申请号：US11173304
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
发明人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
IPC分类号： H04J3/06
CPC分类号： H04W52/42 , H04B7/0848 , H04L25/03019
摘要： In a RF communications system, aspects for implementing a single weight single channel MIMO system with no insertion loss may comprise generating at least one control signal that is utilized to control at least one of a plurality of received signals in a WCDMA and/or HSDPA system. A phase of a first of the plurality of received signals may be adjusted outside of a first processing path used to process that signal so that it is equivalent to a phase of at least a second of the plurality of received signals. A gain in the first processing path may be equivalent to a gain in a second processing path that is utilized to process the second of the plurality of received signals. The control signal may be utilized to adjust a phase and/or an amplitude of at least one of a plurality of received signals.

19. 发明申请

US20060072690A1 Method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system 失效
标题翻译：单通道（SC）单输入多输出（SIMO）系统中信道估计的方法和系统
公开(公告)号：US20060072690A1
公开(公告)日：2006-04-06
申请号：US11173964
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
发明人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
IPC分类号： H04L1/02
CPC分类号： H04L25/0204
摘要： The method and system for channel estimation in a single channel (SC) single-input multiple-output (SIMO) system described herein may provide a fast and cost effective approach to concurrently determine propagation channel estimates in a single-transmit (1-Tx) and multiple-receive (M-Rx) antennas wireless communication system. A single weight baseband generator may comprise a set generator, a channel estimator, and an algorithm generator. The set generator may generate orthogonal function sequences that may be applied to the M receive antennas and may be utilized by the channel estimator to generate channels estimates. The orthogonal function sequences may be transferred to the channel estimator after a delay. The algorithm generator may generate phase values based on the channels estimates that may be applied to the M receive antennas to improve the system's signal-to-noise performance.
摘要翻译：本文描述的单通道（SC）单输入多输出（SIMO）系统中的信道估计的方法和系统可以提供快速且成本有效的方法，以同时确定单发（1-Tx）系统中的传播信道估计，和多接收（M-Rx）天线无线通信系统。单个权重基带发生器可以包括集合发生器，信道估计器和算法生成器。集合生成器可以生成可以应用于M个接收天线的正交函数序列，并且可以被信道估计器用来产生信道估计。正交函数序列可以在延迟之后被传送到信道估计器。算法生成器可以基于可以应用于M个接收天线的信道估计来生成相位值，以提高系统的信噪比性能。

20. 发明申请

US20060072511A1 Method and system for channel estimation in a spatial multiplexing MIMO system 失效
公开(公告)号：US20060072511A1
公开(公告)日：2006-04-06
申请号：US11172756
申请日：2005-06-30
申请人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
发明人： Mark Kent , Vinko Erceg , Uri Landau , Pieter Rooyen
IPC分类号： H04Q7/00
CPC分类号： H04L25/0204 , H04L25/0242
摘要： Aspects of a method and system for channel estimation in a SM MIMO communication system may comprise receiving a plurality of spatially multiplexed communication signals from a plurality of transmit antennas. A plurality of baseband combined channel estimates based on phase rotation may be generated in response to the received plurality of spatially multiplexed communication signals. An estimate of the channel matrix may be determined based on the baseband combined channel estimates. A plurality of amplitude and phase correction signals may be generated in response to receiving the estimate of the channel matrix. An amplitude and a phase of at least a portion of the received plurality of spatially multiplexed communication signals may be adjusted based on the generated plurality of amplitude and phase correction signals, respectively.

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