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    Non-redundant equalization
    21.
    发明授权
    Non-redundant equalization 有权
    非冗余均衡

    公开(公告)号：US08855172B2

    公开(公告)日：2014-10-07

    申请号：US13316084

    申请日：2011-12-09

    Applicant: Andres Reial

    Inventor： Andres Reial

    IPC: H04B1/709

    CPC classification number: H04L25/03133 ,  H04B2201/70701

    Abstract: Communication signal processing entails generating an overall signal correlation estimate that reflects overall impairment present in a received signal before despreading. Processing further includes parametrically constructing one or more component-specific correction terms as a function of one or more component signal correlation estimates, each estimate reflecting a particular component of the overall impairment. Combining weights are derived, as a function of this overall estimate and the correction term(s), so that they exclude the contribution of the impairment component(s) to the overall impairment. These weights are used to combine signal samples in an equalization process. As the combining weights exclude the contribution of the impairment component(s) to the overall impairment, the equalization process utilizing the weights exclusively suppresses impairment that is not attributable to the component(s). This advantageously avoids redundant suppression of the impairment component(s), since processing further includes despreading the received signal in a despreading process that suppresses the component(s).

    Abstract translation: 通信信号处理需要产生总体信号相关估计，其反映在解扩之前在接收信号中存在的总体损害。 处理进一步包括参数地构造一个或多个组件特定校正项作为一个或多个分量信号相关估计的函数，每个估计反映整体损伤的特定分量。 作为该总体估计和校正期限的函数，导出权重的组合，使得它们不包括减值成分对整体损益的贡献。 这些权重用于在均衡过程中组合信号样本。 由于组合权重不包括损害成分对总体损害的贡献，所以利用权重的均衡处理仅仅抑制不归因于成分的损失。 这有利地避免了损伤部件的冗余抑制，因为处理进一步包括在抑制部件的解扩过程中解扩接收到的信号。

    MMSE MUD in 1x mobiles
    23.
    发明授权
    MMSE MUD in 1x mobiles 有权
    MMSE MUD在1x手机中

    公开(公告)号：US08737451B2

    公开(公告)日：2014-05-27

    申请号：US11684308

    申请日：2007-03-09

    Applicant: Sharad Sambhwani

    Inventor： Sharad Sambhwani

    IPC: H04B1/00

    CPC classification number: H04B1/7107 ,  H04B2201/70701

    Abstract: Systems and methodologies are described that facilitate equalizing inter-sector interference and performing interference cancellation on a forward link by utilizing a combination of pilot interference cancellation followed by selective interference cancellation. Selective interference cancellation can be performed using, for instance, a reduced-rank minimum mean-squared error multi-user detection receiver. A system matrix can be reduced by the combined cancellation protocols, and can be further reduced by performing a fast Hadamard transform there on, which in turn can minimize matrix complexity, as well as computational overhead associated with processing the system matrix.

    Abstract translation: 描述了通过利用导频干扰消除和选择性干扰消除的组合来促进均衡扇区间干扰并在前向链路上执行干扰消除的系统和方法。 可以使用例如降级最小均方误差多用户检测接收机来执行选择性干扰消除。 可以通过组合的消除协议来减少系统矩阵，并且可以通过在其上执行快速的Hadamard变换来进一步减少，这反过来可以最小化矩阵复杂度，以及与处理系统矩阵相关联的计算开销。

    Data channel noise estimation using pilot channel
    24.
    发明授权
    Data channel noise estimation using pilot channel 有权
    使用导频信道的数据信道噪声估计

    公开(公告)号：US08737247B1

    公开(公告)日：2014-05-27

    申请号：US13246875

    申请日：2011-09-28

    Applicant: Shimon Moshavi ,  Gil Katzir ,  Nimrod Mesika ,  Maor Margalit

    Inventor： Shimon Moshavi ,  Gil Katzir ,  Nimrod Mesika ,  Maor Margalit

    IPC: H04B1/7115

    CPC classification number: H04B1/707 ,  H04B7/0413 ,  H04B2201/70701 ,  H04L25/0232

    Abstract: A method includes receiving a Code Division Multiple Access (CDMA) carrier carrying at least a pilot channel. Differences are computed between selected soft pilot symbols received on the pilot channel. Based on the computed differences between the selected soft pilot symbols received on the pilot channel, a level of noise is estimated for a data channel that is to be transmitted on the CDMA carrier.

    Abstract translation: 一种方法包括接收携带至少导频信道的码分多址（CDMA）载波。 在导频信道上接收的所选择的软导频符号之间计算差值。 基于在导频信道上接收到的所选择的软导频符号之间的计算出的差异，针对要在CDMA载波上发送的数据信道估计噪声电平。

    Pilot interference cancellation
    25.
    发明授权
    Pilot interference cancellation 有权
    导频干扰消除

    公开(公告)号：US08630602B2

    公开(公告)日：2014-01-14

    申请号：US12484572

    申请日：2009-06-15

    Applicant: Rashid Ahmed A. Attar ,  Yu-Cheun Jou ,  Peter J. Black ,  Jun Ma

    Inventor： Rashid Ahmed A. Attar ,  Yu-Cheun Jou ,  Peter J. Black ,  Jun Ma

    IPC: H04B1/10

    CPC classification number: H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701 ,  H04L25/0224 ,  H04W52/12

    Abstract: Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.

    Abstract translation: 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。

    Mobile station, base station, communication system, and communication method
    26.
    发明授权
    Mobile station, base station, communication system, and communication method 有权
    移动台，基站，通信系统和通信方式

    公开(公告)号：US08630226B2

    公开(公告)日：2014-01-14

    申请号：US12161204

    申请日：2007-01-10

    Applicant: Teruo Kawamura ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    Inventor： Teruo Kawamura ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC: H04W4/00 ,  H04B7/216 ,  H04K1/10 ,  H04L27/28

    CPC classification number: H04J13/0059 ,  H04B1/7103 ,  H04B2201/70701 ,  H04B2201/709709 ,  H04J13/22 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613

    Abstract: A disclosed communication system includes multiple mobile stations and a base station. The mobile station maps a pilot channel comprising a CAZAC code to a signal including multiple frequency components arranged at regular intervals in a given frequency band, and transmits a transmission signal including the signal according to scheduling information. The mobile station performs the mapping such that its transmission signal and transmission signals of other mobile stations using different frequency bands become orthogonal to each other on a frequency axis. The base station calculates the correlation between a received signal and a pilot channel replica, performs channel estimation, and demodulates the received signal based on the result of channel estimation. The base station generates the pilot channel replica by mapping a pilot channel comprising a CAZAC code to a signal including multiple frequency components arranged at regular intervals in a given frequency band.

    Abstract translation: 所公开的通信系统包括多个移动站和基站。 移动站将包含CAZAC码的导频信道映射到在给定频带中以规则间隔排列的包含多个频率分量的信号，并根据调度信息发送包括该信号的发送信号。 移动台进行映射，使得其发送信号和使用不同频带的其他移动台的发送信号在频率轴上彼此正交。 基站计算接收信号与导频信道副本之间的相关性，进行信道估计，并根据信道估计结果对接收信号进行解调。 基站通过将包括CAZAC码的导频信道映射到包括在给定频带中以规则间隔布置的多个频率分量的信号来生成导频信道副本。

    Wireless communication base station device and total transmission power regulating method
    28.
    发明授权
    Wireless communication base station device and total transmission power regulating method 有权
    无线通信基站装置和总传输功率调节方法

    公开(公告)号：US08577361B2

    公开(公告)日：2013-11-05

    申请号：US13128852

    申请日：2009-11-27

    Applicant: Katsuyoshi Naka ,  Jinsong Duan

    Inventor： Katsuyoshi Naka ,  Jinsong Duan

    IPC: H04W24/00 ,  H04W4/00

    CPC classification number: H04W52/244 ,  H04B1/707 ,  H04B1/7097 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J11/0056 ,  H04W16/16 ,  H04W52/143 ,  H04W52/245 ,  H04W52/30 ,  H04W88/08

    Abstract: Disclosed are a wireless communication base station and a total transmission power regulating method that reduce interference to macrocell users near a femtocell and interference to neighboring femtocell users near the femtocell in a balanced manner, while ensuring throughput of the femtocell users. A reception power measuring unit (214) measures the reception power of a CPICH. A cell type discriminating unit (216) judges whether the received signal is a signal from a macro base station or a signal from a femto base station. When a signal from a macro base station is received, a total downlink transmission power setting unit (217) executes a first-stage interference regulation based on the strongest CPICH reception power value and calculates a tentative value for the total downlink transmission power of a femto base station (110). When a signal from a peripheral femto base station is received, the total downlink transmission power setting unit (217) executes a second-stage interference regulation within a fixed power regulation range for the second-stage interference regulation based on the strongest CPICH reception power value, and calculates a final total downlink transmission power value.

    Abstract translation: 公开了一种在确保毫微微小区用户的吞吐量的同时，以平衡的方式减少对毫微微小区附近的宏小区用户的干扰以及对毫微微小区附近的相邻毫微微小区用户的干扰的无线通信基站和总发射功率调整方法。 接收功率测量单元（214）测量CPICH的接收功率。 小区类型判别单元（216）判断接收到的信号是来自宏基站的信号还是来自毫微微基站的信号。 当接收到来自宏基站的信号时，总下行链路发送功率设定单元（217）基于最强的CPICH接收功率值执行第一级干扰调整，并且计算毫微微总的下行链路发送功率的试探值 基站（110）。 当接收到来自外围毫微微基站的信号时，总下行链路发送功率设定单元（217）在基于最强的CPICH接收功率值的第二级干扰调整的固定功率调节范围内执行第二级干扰调整 ，并计算最终总下行链路发送功率值。

    Pilot signal transmitting method, base station, mobile station and cellular system to which the method is applied
    30.
    发明授权
    Pilot signal transmitting method, base station, mobile station and cellular system to which the method is applied 有权
    导频信号发送方法，基站，移动台和蜂窝系统，应用该方法

    公开(公告)号：US08547894B2

    公开(公告)日：2013-10-01

    申请号：US13724304

    申请日：2012-12-21

    Applicant: Fujitsu Limited

    Inventor： Takashi Seyama

    IPC: H04H20/71

    CPC classification number: H04W72/005 ,  H04B1/7083 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J11/0079 ,  H04L5/005 ,  H04W72/042

    Abstract: A transmitting method in a mobile communication system, which has a base and mobile station that performs radio communication with the base station in a cell of a radio communication area formed by the base station, and mixes, allocates unicast data and broadcast/multicast data to subframes in a radio frame, and transmits the radio frame as downstream data from the base station to the mobile station, by the base station, multiplexing cell-specific pilot signals corresponding to the unicast data to a first subframe to where data is allocated, while multiplexing cell-specific pilot signals to a second subframe to where data is allocated, where the number of the cell-specific pilot signals allocated to the second subframe is different from the number of the cell-specific pilot signals allocated to the first subframe; setting a difference between the various start phase of cell-specific pilot signals transmitted in the various subframes.

    Abstract translation: 一种移动通信系统中的发送方法，其具有：基站和移动台，其在由所述基站形成的无线通信区域的小区内与所述基站进行无线通信，并且将所述单播数据和广播/组播数据分配给 在无线电帧中的子帧，并且通过基站将无线帧作为下行数据从基站发送到移动台，将与单播数据相对应的小区特定导频信号复用到分配数据的第一子帧，同时 将小区特定导频信号复用到分配给第二子帧的小区特定导频信号的数目与分配给第一子帧的小区特定导频信号的数目不同的第二子帧， 设置在各个子帧中发送的小区特定导频信号的各个起始相位之间的差异。

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