公开(公告)号：US20110075767A1

公开(公告)日：2011-03-31

申请号：US12568036

申请日：2009-09-28

Applicant: Gregory E. Bottomley ,  Yi-Pin Eric Wang

Inventor： Gregory E. Bottomley ,  Yi-Pin Eric Wang

IPC: H04L27/06

CPC classification number: H04L25/03178 ,  H04L25/03203 ,  H04L25/03331 ,  H04L2025/03426

Abstract: Teachings presented herein offer reduced computational complexity for detecting a plurality of symbol blocks, even for symbol blocks that comprise the combination of a relatively large number of symbols. The teachings perform two or more stages of detection assistance to successively reduce the number of candidate combinations of symbols to be considered for a symbol block when detecting the plurality of symbol blocks. In particular, the teachings identify a reduced set of candidate symbol combinations for at least one symbol block in the plurality of symbol blocks, and then jointly detect each of one or more distinct groups of symbols in the symbol block to determine from that reduced set a final reduced set of candidate symbol combinations. Detection of the plurality of symbol blocks limits the candidate combinations of symbols considered for a symbol block to the final reduced set of candidate symbol combinations identified for that symbol block.

Abstract translation: 本文中提供的教学提供了用于检测多个符号块的减少的计算复杂度，即使对于包括相对大量符号的组合的符号块也是如此。 该教导执行检测辅助的两个或多个阶段，以便在检测到多个符号块时，连续地减少要用于符号块的符号候选组合的数量。 具体地，教导识别多个符号块中的至少一个符号块的候选符号组合的缩减集合，然后共同检测符号块中的一个或多个不同符号组中的每个，以从该缩减集合a 候选符号组合的最终缩减集合。 多个符号块的检测将针对符号块考虑的符号的候选组合限制为为该符号块识别的候选符号组合的最终缩减集合。

公开(公告)号：US07873098B2

公开(公告)日：2011-01-18

申请号：US11739126

申请日：2007-04-24

Applicant: Douglas A. Cairns ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley

Inventor： Douglas A. Cairns ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley

IPC: H04B1/00

CPC classification number: H04B1/71055 ,  H04B1/7107 ,  H04B2201/709727

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07848387B2

公开(公告)日：2010-12-07

申请号：US11751109

申请日：2007-05-21

Applicant: Elias Jonsson ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Stephen J. Grant

Inventor： Elias Jonsson ,  Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Stephen J. Grant

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B7/0634 ,  H04B2201/709727

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07830952B2

公开(公告)日：2010-11-09

申请号：US11276069

申请日：2006-02-13

Applicant: Hakan Bengt Eriksson ,  Carmela Cozzo ,  Ali S. Khayrallah ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang

Inventor： Hakan Bengt Eriksson ,  Carmela Cozzo ,  Ali S. Khayrallah ,  Gregory E. Bottomley ,  Yi-Pin Eric Wang

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B1/71052 ,  H04B1/711 ,  H04B2201/709727

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100246701A1

公开(公告)日：2010-09-30

申请号：US12740080

申请日：2008-10-30

Applicant: Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

Inventor： Dirk Gerstenberger ,  Johan Bergman ,  Christer Edholm ,  Jose Luis Pradas ,  Stefan Wager ,  Yi-Pin Eric Wang

IPC: H04K1/10 ,  H04B7/00

CPC classification number: H04W74/006 ,  H04W74/0833 ,  H04W74/0866

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07773950B2

公开(公告)日：2010-08-10

申请号：US10869527

申请日：2004-06-16

Applicant: Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Rajaram Ramesh

Inventor： Yi-Pin Eric Wang ,  Gregory E. Bottomley ,  Rajaram Ramesh

IPC: H04B17/00

CPC classification number: H04L1/20 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/206

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07724813B2

公开(公告)日：2010-05-25

申请号：US11321709

申请日：2005-12-29

Applicant: Yi-Pin Eric Wang ,  Gregory Bottomley ,  Lennart Andersson

Inventor： Yi-Pin Eric Wang ,  Gregory Bottomley ,  Lennart Andersson

IPC: H04B17/00 ,  H04B7/00

CPC classification number: H04W52/286 ,  H04B2201/709727 ,  H04W52/16 ,  H04W52/325

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100124206A1

公开(公告)日：2010-05-20

申请号：US12572423

申请日：2009-10-02

Applicant: Gregory E. Bottomley ,  Dirk Gerstenberger ,  Lars Lindbom ,  Yi-Pin Eric Wang

Inventor： Gregory E. Bottomley ,  Dirk Gerstenberger ,  Lars Lindbom ,  Yi-Pin Eric Wang

IPC: H04J3/00 ,  H04B1/707

CPC classification number: H04W4/06 ,  H04B1/707 ,  H04B2201/70701 ,  H04J3/00 ,  H04J13/0044 ,  H04J13/20

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100098030A1

公开(公告)日：2010-04-22

申请号：US12445070

申请日：2006-11-01

Applicant: Yi-Pin Eric Wang ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar

Inventor： Yi-Pin Eric Wang ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Leonid Krasny ,  Karl Molnar

IPC: H04W72/04 ,  H04L27/28

CPC classification number: H04L1/0015 ,  H04B7/0426 ,  H04B2201/709727 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0618 ,  H04W52/262 ,  H04W52/42

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100061472A1

公开(公告)日：2010-03-11

申请号：US12514762

申请日：2006-11-13

Applicant: Karl Molnar ,  Leonid Krasny ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Yi-Pin Eric Wang

Inventor： Karl Molnar ,  Leonid Krasny ,  Jung-Fu Thomas Cheng ,  Stephen Grant ,  Yi-Pin Eric Wang

IPC: H04L27/28 ,  H04B7/00

CPC classification number: H04L5/005 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0684 ,  H04B2201/70701 ,  H04J13/0003 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0618 ,  H04L2001/0093

Abstract: 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.

Abstract translation: 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。