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91. 发明授权

US07873098B2 Robust multicode detector for HSDPA 有权
标题翻译：用于HSDPA的强大的多码检测器
公开(公告)号：US07873098B2
公开(公告)日：2011-01-18
申请号：US11739126
申请日：2007-04-24
申请人： Douglas A. Cairns , Yi-Pin Eric Wang , Gregory E. Bottomley
发明人： Douglas A. Cairns , Yi-Pin Eric Wang , Gregory E. Bottomley
IPC分类号： H04B1/00
CPC分类号： H04B1/71055 , H04B1/7107 , H04B2201/709727
摘要： Detecting a symbol of interest comprises despreading a received signal to obtain despread values corresponding to the symbol of interest and to one or more interfering symbols, combining the despread values to generate combined values for the symbol of interest and the interfering symbols, computing spreading waveform correlations between the spreading waveform for the symbol of interest and the spreading waveforms for the interfering symbols, computing interference rejection terms representing the interference present in the combined value for the symbol of interest attributable to the interfering symbols based on the spreading waveform correlations, and generating an estimate of the symbol of interest by combining the combined values with the interference rejection terms. The interference rejection terms are computed by scaling the spreading waveform correlations by corresponding signal powers and compensating the estimates for noise. This provides a robust interference model that avoids numerical problems associated with conventional joint detection.
摘要翻译：检测感兴趣的符号包括解扩接收信号以获得对应于感兴趣符号的解扩值和一个或多个干扰符号，组合解扩值以产生感兴趣符号和干扰符号的组合值，计算扩展波形相关性在感兴趣符号的扩展波形和干扰符号的扩展波形之间，基于扩展波形相关性计算代表归因于干扰符号的感兴趣符号的组合值中存在的干扰的干扰抑制项，通过将组合值与干扰抑制项组合来估计感兴趣的符号。通过相应的信号功率缩放扩展波形相关性并补偿噪声的估计来计算干扰抑制项。这提供了一个强大的干扰模型，可以避免与常规关节检测相关的数值问题。

92. 发明授权

US07848387B2 Receiver parametric covariance estimation for transmit diversity 有权
标题翻译：用于发射分集的接收机参数协方差估计
公开(公告)号：US07848387B2
公开(公告)日：2010-12-07
申请号：US11751109
申请日：2007-05-21
申请人： Elias Jonsson , Yi-Pin Eric Wang , Gregory E. Bottomley , Stephen J. Grant
发明人： Elias Jonsson , Yi-Pin Eric Wang , Gregory E. Bottomley , Stephen J. Grant
IPC分类号： H04B1/00
CPC分类号： H04B1/712 , H04B7/0634 , H04B2201/709727
摘要： A parametric form of G-Rake and chip equalization for closed-loop transmit diversity is provided, that accounts for impairment correlation between transmit antennas. In a closed-loop transmit diversity system, the base station transmits a signal from two or more antennas, using one of a predetermined set of relative phase offsets at one of the antennas. The parametric estimation of the impairment or data covariance is performed by summing terms, including a term for each possible phase offset. The terms are weighted by fitting parameters. The fitting parameters are jointly solved by fitting the impairment or data covariance estimate to a measured impairment or data covariance. In another aspect, a measured impairment covariance is formed by exploiting a special relationship between the pilot channels of the different transmit antennas.
摘要翻译：提供了用于闭环发射分集的G-Rake和码片均衡的参数形式，其考虑了发射天线之间的损害相关性。在闭环发射分集系统中，基站使用在天线之一处的预定相对相位偏移集合中的一个从两个或多个天线发射信号。损伤或数据协方差的参数估计是通过求和术语来执行的，包括每个可能的相位偏移的项。这些术语通过拟合参数加权。拟合参数通过将损伤或数据协方差估计拟合为测量的损伤或数据协方差来共同解决。在另一方面，通过利用不同发射天线的导频信道之间的特殊关系来形成测量的损害协方差。

93. 发明授权

US07830952B2 Reduced complexity interference suppression for wireless communications 有权
标题翻译：降低了无线通信的复杂度干扰抑制
公开(公告)号：US07830952B2
公开(公告)日：2010-11-09
申请号：US11276069
申请日：2006-02-13
申请人： Hakan Bengt Eriksson , Carmela Cozzo , Ali S. Khayrallah , Gregory E. Bottomley , Yi-Pin Eric Wang
发明人： Hakan Bengt Eriksson , Carmela Cozzo , Ali S. Khayrallah , Gregory E. Bottomley , Yi-Pin Eric Wang
IPC分类号： H04B1/00
CPC分类号： H04B1/712 , H04B1/71052 , H04B1/711 , H04B2201/709727
摘要： The computational complexity required for interference suppression in the reception of wireless communications from multiple users is reduced by sharing information among the users. In some situations, information indicative of a statistical characteristic of the interference is shared among the users. Delays used to produce the interference statistic information are determined based on rake finger delays employed by the users. In some situations, a parameter estimate that is used to calculate combining weights for the users is shared among the users.
摘要翻译：通过在用户之间共享信息来减少在多个用户的无线通信的接收中的干扰抑制所需的计算复杂度。在某些情况下，用户之间共享指示干扰的统计特性的信息。用于产生干扰统计信息的延迟是基于用户使用的耙指延迟来确定的。在某些情况下，用户之间共享用于计算用户组合权重的参数估计。

94. 发明申请

US20100246701A1 Fast Random Access for an Enhanced Uplink Dedicated Channel 有权
标题翻译：用于增强型上行链路专用信道的快速随机接入
公开(公告)号：US20100246701A1
公开(公告)日：2010-09-30
申请号：US12740080
申请日：2008-10-30
申请人： Dirk Gerstenberger , Johan Bergman , Christer Edholm , Jose Luis Pradas , Stefan Wager , Yi-Pin Eric Wang
发明人： Dirk Gerstenberger , Johan Bergman , Christer Edholm , Jose Luis Pradas , Stefan Wager , Yi-Pin Eric Wang
IPC分类号： H04K1/10 , H04B7/00
CPC分类号： H04W74/006 , H04W74/0833 , H04W74/0866
摘要： The present invention relates to fast random access methods and arrangements for the enhanced uplink dedicated channel of E-UTRAN (Evolved Universal terrestrial radio access network). A user equipment (UE) being in a low activity state sends a random access request comprising a preamble on a physical random access channel (PRACH) to a NodeB. The NodeB receives the request and sends in response to the received random access request a response comprising information associated with detection of the preamble on an acquisition indicator channel (AICH). The response comprises further in an extension of the AICH an indication of an action to be taken by the UE. In an embodiment of the present invention the action is to access the E-DCH and the response comprises configuration parameters to the E-DCH.
摘要翻译：本发明涉及用于E-UTRAN（演进通用陆地无线电接入网络）的增强型上行链路专用信道的快速随机接入方法和装置。处于低活动状态的用户设备（UE）将物理随机接入信道（PRACH）上的前导码的随机接入请求发送到节点B。节点B接收请求并响应于接收到的随机接入请求发送包括与获取指示符信道（AICH）上的前导码的检测相关联的信息的响应。该响应在AICH的扩展中进一步包括UE要采取的动作的指示。在本发明的一个实施例中，动作是访问E-DCH，响应包括对E-DCH的配置参数。

95. 发明授权

US07773950B2 Benign interference suppression for received signal quality estimation 有权
标题翻译：接收信号质量估计的良性干扰抑制
公开(公告)号：US07773950B2
公开(公告)日：2010-08-10
申请号：US10869527
申请日：2004-06-16
申请人： Yi-Pin Eric Wang , Gregory E. Bottomley , Rajaram Ramesh
发明人： Yi-Pin Eric Wang , Gregory E. Bottomley , Rajaram Ramesh
IPC分类号： H04B17/00
CPC分类号： H04L1/20 , H04B2201/709727 , H04L1/0003 , H04L1/0026 , H04L1/206
摘要： A receiver circuit suppresses effects of “benign” impairment from the calculation of received signal quality estimates, such that the estimate depends primarily on the effects of non-benign impairment. For example, a received signal may be subject to same-cell and other-cell interference plus noise, which is generally modeled using a Gaussian distribution, and also may be due to certain forms of self-interference, such as quadrature phase interference arising from imperfect derotation of the pilot samples used to generate channel estimates for the received signal. Such interference generally takes on a distribution defined by the pilot signal modulation, e.g., a binomial distribution for binary phase shift keying modulation. Interference arising from such sources is relatively “benign” as compared to Gaussian interference and thus should be suppressed or otherwise discounted in signal quality calculations. Suppression may be based on subtracting benign impairment correlation estimates from total impairment correlation estimates, or on filtering the benign impairment in channel estimation.
摘要翻译：接收机电路抑制从接收到的信号质量估计的计算中的“良性”损伤的影响，使得估计主要取决于非良性损伤的影响。例如，接收到的信号可以经受相同小区和其他小区干扰加噪声，其通常使用高斯分布来建模，并且还可能是由于某些形式的自干扰，例如由用于产生接收信号的信道估计的导频样本的不完全解旋。这种干扰通常采用由导频信号调制定义的分布，例如二进制相移键控调制的二项分布。与高斯干扰相比，从这些源产生的干扰相对“良性”，因此在信号质量计算中应被抑制或以其他方式折扣。抑制可以基于从总损伤相关性估计中减去良性损伤相关估计，或者在滤波信道估计中的良性损伤。

96. 发明授权

US07724813B2 Method and apparatus for transmit power control 有权
标题翻译：发射功率控制的方法和装置
公开(公告)号：US07724813B2
公开(公告)日：2010-05-25
申请号：US11321709
申请日：2005-12-29
申请人： Yi-Pin Eric Wang , Gregory Bottomley , Lennart Andersson
发明人： Yi-Pin Eric Wang , Gregory Bottomley , Lennart Andersson
IPC分类号： H04B17/00 , H04B7/00
CPC分类号： H04W52/286 , H04B2201/709727 , H04W52/16 , H04W52/325
摘要： According to method and apparatus embodiments taught herein, power control feedback is generated for a control channel signal that is received in conjunction with a reference channel signal based on the reference channel's signal strength or quality, and an estimate of a gain factor relating the control and reference channel signals. By way of non-limiting example set in a Wideband CDMA (WCDMA) context, the reference channel signal comprises a Common Pilot Channel (CPICH) signal and the control channel signal comprises a Fractional Dedicated Physical Channel (F-DPCH) signal that is transmitted at an (unknown) power gain relative to the CPICH signal.
摘要翻译：根据本文教导的方法和装置实施例，为基于参考信道的信号强度或质量而结合参考信道信号接收的控制信道信号生成功率控制反馈，以及与控制和参考通道信号。通过在宽带CDMA（WCDMA）上下文中设置的非限制性示例，参考信道信号包括公共导频信道（CPICH）信号，并且控制信道信号包括传输的分数专用物理信道（F-DPCH）信号以相对于CPICH信号的（未知）功率增益。

97. 发明申请

US20100124206A1 TIME-DIVISION MULTIPLEXED PILOT SIGNAL FOR INTEGRATED MOBILE BROADCASTS 有权
标题翻译：用于综合移动广播的时分多路复用引导信号
公开(公告)号：US20100124206A1
公开(公告)日：2010-05-20
申请号：US12572423
申请日：2009-10-02
申请人： Gregory E. Bottomley , Dirk Gerstenberger , Lars Lindbom , Yi-Pin Eric Wang
发明人： Gregory E. Bottomley , Dirk Gerstenberger , Lars Lindbom , Yi-Pin Eric Wang
IPC分类号： H04J3/00 , H04B1/707
CPC分类号： H04W4/06 , H04B1/707 , H04B2201/70701 , H04J3/00 , H04J13/0044 , H04J13/20
摘要： A pilot channel signal for time-division multiplexing with one or more traffic channel signals in a broadcast/multi-cast signal and for code-division multiplexing with a continuously transmitted pilot channel signal is described. In an exemplary method for transmitting a broadcast/multicast signal, a pilot symbol sequence is obtained for each slot of one or more frames of the broadcast/multicast signal, so that the pilot symbol sequence varies for each slot of a given frame. The pilot symbol sequence for each slot is spread with a channelization code, and the spread pilot symbol sequence for each slot is scrambled, using a scrambling code, to form a first pilot channel signal. The first pilot channel signal is transmitted so that it is time-division multiplexed with one or more traffic channel signals transmitted during each slot and code-division multiplexed with a second pilot channel signal transmitted during all slots of the one or more frames.
摘要翻译：描述了用于与广播/多播信号中的一个或多个业务信道信号进行时分复用并用于与连续发送的导频信道信号进行码分复用的导频信道信号。在用于发送广播/多播信号的示例性方法中，为广播/多播信号的一个或多个帧的每个时隙获得导频符号序列，使得导频符号序列对于给定帧的每个时隙而变化。每个时隙的导频符号序列用信道化码扩展，并且使用扰码对每个时隙的扩展导频符号序列进行加扰，以形成第一导频信道信号。发送第一导频信道信号，使其与在每个时隙期间发送的一个或多个业务信道信号进行时分复用，并与在一个或多个帧的所有时隙期间发送的第二导频信道进行码分多路复用。

98. 发明申请

US20100098030A1 Method and Arrangement for SINR Feedback in MIMO Based Wireless Communication Systems 失效
标题翻译：基于MIMO的无线通信系统SINR反馈的方法和布置
公开(公告)号：US20100098030A1
公开(公告)日：2010-04-22
申请号：US12445070
申请日：2006-11-01
申请人： Yi-Pin Eric Wang , Jung-Fu Thomas Cheng , Stephen Grant , Leonid Krasny , Karl Molnar
发明人： Yi-Pin Eric Wang , Jung-Fu Thomas Cheng , Stephen Grant , Leonid Krasny , Karl Molnar
IPC分类号： H04W72/04 , H04L27/28
CPC分类号： H04L1/0015 , H04B7/0426 , H04B2201/709727 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0618 , H04W52/262 , H04W52/42
摘要： The present invention relates to a method and arrangement to enhance the communication performance in wireless communication systems. The method of the invention provides better adjustment of reported SINR in MIMO, and PARC-MIMO based communication systems. According to the method information relating to signal-to-interference-plus-noise ratio is determined by the user equipment and reported to the base station. The base station adjust reported SINRs using a model of the SINR dependences of power and code allocation. The dependences is modeled by a function comprising a first parameter relating only to power allocation and a second parameter relating only to code allocation. The first parameter has a power allocation exponent and the second parameter has a code allocation exponent. Both the power allocation exponent and the code allocation exponent are data stream dependent.
摘要翻译：本发明涉及一种用于增强无线通信系统中的通信性能的方法和装置。本发明的方法提供对MIMO中所报告的SINR的更好的调整以及基于PARC-MIMO的通信系统。根据该方法，信号与干扰加噪声比的信息由用户设备确定并向基站报告。基站使用功率和码分配的SINR依赖关系的模型来调整报告的SINR。依赖关系由包括仅与功率分配相关的第一参数的功能和仅与代码分配相关的第二参数来建模。第一个参数具有功率分配指数，第二个参数具有代码分配指数。功率分配指数和代码分配指数都是依赖于数据流。

99. 发明申请

US20100061472A1 METHOD AND ARRANGEMENT FOR PILOT PATTERN BASED CONTROL SIGNALLING IN MIMO SYSTEMS 有权
标题翻译： MIMO系统中基于引导模式的控制信号的方法和布置
公开(公告)号：US20100061472A1
公开(公告)日：2010-03-11
申请号：US12514762
申请日：2006-11-13
申请人： Karl Molnar , Leonid Krasny , Jung-Fu Thomas Cheng , Stephen Grant , Yi-Pin Eric Wang
发明人： Karl Molnar , Leonid Krasny , Jung-Fu Thomas Cheng , Stephen Grant , Yi-Pin Eric Wang
IPC分类号： H04L27/28 , H04B7/00
CPC分类号： H04L5/005 , H04B7/0417 , H04B7/0632 , H04B7/0684 , H04B2201/70701 , H04J13/0003 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L1/0026 , H04L1/0618 , H04L2001/0093
摘要： The present invention relates to control signaling in wireless communication systems. In particular, the present invention relates to control signaling in MIMO based communication systems. In the method according to the invention control information is transferred from a base station to at least one user equipment, via a plurality of common pilot channels. A set of unique pilot sequences has been pre-defined, and the base station assigns specific pilot sequences from the set of pilot sequences to specific common pilot channels, forming a pilot sequence assignment pattern representing a specific control information. The user equipment, having knowledge of the relations between pilot sequence assignment patterns and control information, interprets the received pilot sequence assignment pattern as specific control information. The method is particularly well suited for broadcast type control information.
摘要翻译：本发明涉及无线通信系统中的控制信令。具体地，本发明涉及基于MIMO的通信系统中的控制信令。在根据本发明的方法中，控制信息经由多个公共导频信道从基站传送到至少一个用户设备。已经预先定义了一组唯一的导频序列，并且基站将特定导频序列从该导频序列集合分配给特定的公共导频信道，形成表示特定控制信息的导频序列分配模式。了解导频序列分配模式和控制信息之间的关系的用户设备将接收到的导频序列分配模式解释为特定的控制信息。该方法特别适用于广播类型控制信息。

100. 发明申请

US20090316674A1 METHOD AND APPARATUS FOR DEMODULATION OF QAM SIGNAL USING SYMBOL-SPECIFIC AMPLITUDE REFERENCE ESTIMATION 审中-公开
标题翻译：使用符号特征参数估计的QAM信号解调的方法和装置
公开(公告)号：US20090316674A1
公开(公告)日：2009-12-24
申请号：US12141607
申请日：2008-06-18
申请人： Yi-Pin Eric Wang , Gregory E. Bottomley , Douglas A. Cairns
发明人： Yi-Pin Eric Wang , Gregory E. Bottomley , Douglas A. Cairns
IPC分类号： H04J13/04
CPC分类号： H04B1/712 , H04B1/7105 , H04B2201/709727
摘要： According to the teachings presented herein, “spreading code” knowledge is used in forming amplitude references for QAM demodulation in a DS-CDMA receiver. Here, “spreading code” broadly refers to spreading/channelization codes, scrambling codes, or the product of such codes. Further, these teachings apply to any linear DS-CDMA demodulator, such as Rake, Generalized Rake (G-Rake), or chip equalizer, and to nonlinear demodulators that employ linear filtering, such as decision feedback equalizers (DFEs). Advantageously, the determination of symbol-specific amplitude references relies on shared correlation estimates and/or shared combining weights that are common to two or more symbols of interest, thereby significantly reducing processing requirements as compared to the use of symbol-specific impairment correlation estimates.
摘要翻译：根据本文提出的教导，在DS-CDMA接收机中使用“扩展码”知识来形成QAM解调的幅度参考。这里，“扩展码”广泛地指扩频/信道化码，扰码或这些码的乘积。此外，这些教导适用于任何线性DS-CDMA解调器，例如Rake，Generalized Rake（G-Rake）或码片均衡器，以及采用线性滤波的非线性解调器，例如判决反馈均衡器（DFE）。有利地，符号特定幅度参考的确定依赖于两个或多个感兴趣符号共有的共享相关估计和/或共享组合权重，从而与使用符号特异性损害相关估计相比显着地减少了处理要求。

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