公开(公告)号：US07949063B2

公开(公告)日：2011-05-24

申请号：US11679541

申请日：2007-02-27

Applicant: Elias Jonsson ,  Andres Reial

Inventor： Elias Jonsson ,  Andres Reial

IPC: H04B7/02 ,  H04L1/02

CPC classification number: H04W72/12 ,  H04B1/7103 ,  H04B1/712 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0697 ,  H04B2201/70701 ,  H04B2201/709727 ,  Y02D70/40 ,  Y02D70/444

Abstract: The teachings herein disclose methods and apparatus that simplify impairment correlation estimation for received signal processing, based on determining, for any given processing interval, which impairment contributors should be considered in the estimation of overall received signal impairment correlations. These simplifications reduce computational processing requirements, allowing reduced circuit complexity and/or reduced operating power, and improve receiver performance. A corresponding transmitter and transmission method include transmitting multiple information streams to targeted receivers according to ongoing scheduling, and controlling the ongoing scheduling to reduce the number of impairment contributors considered in impairment correlation estimation at the targeted receivers. In one embodiment, a receiver identifies which impairment contributors to consider based on receiving control information. In another embodiment, the receiver identifies the impairment contributors to consider based on background processing, e.g., background determination of parametric model fitting parameters for a plurality of impairment contributors, and observing those model fitting parameters over time.

Abstract translation: 本文的教导公开了简化对接收信号处理的损害相关估计的方法和装置，其基于对于任何给定的处理间隔，在估计总体接收信号损害相关中应考虑哪些损害贡献者。 这些简化减少了计算处理要求，从而降低了电路复杂度和/或降低了操作功率，并提高了接收机性能。 相应的发射机和传输方法包括根据正在进行的调度向目标接收机发送多个信息流，并控制正在进行的调度，以减少目标接收机的损害相关估计中所考虑的损害贡献者的数量。 在一个实施例中，接收机基于接收控制信息识别要考虑的损害贡献者。 在另一个实施例中，接收机基于背景处理识别要考虑的损害贡献者，例如用于多个损害贡献者的参数模型拟合参数的背景确定，以及随时间观察这些模型拟合参数。

公开(公告)号：US07929591B2

公开(公告)日：2011-04-19

申请号：US11552573

申请日：2006-10-25

Applicant: Bengt Lindoff ,  Andres Reial

Inventor： Bengt Lindoff ,  Andres Reial

IPC: H04B1/707

CPC classification number: H04B1/712 ,  H04B2201/709727 ,  H04L25/0212 ,  H04L25/03012

Abstract: In one or more embodiments, a receiver circuit generates impairment correlation estimates for a desired signal that are compensated for the use of different transmission scrambling codes in transmitting the desired signal and an associated pilot signal. In one embodiment, an impairment correlation estimation method comprises determining impairment correlation estimates from a pilot signal in a received CDMA signal, adapting the impairment correlation estimates for scrambling code effects if the desired signal and pilot signal are transmitted under different transmission scrambling codes, and performing one or more signal processing operations with respect to the desired signal based on the impairment correlation estimates. For example, in at least one embodiment, the receiver circuit is configured to compensate elements of an impairment correlation matrix that correspond to signal delays of the desired signal based on transmit power allocation differences between pilot and desired signal scrambling codes.

Abstract translation: 在一个或多个实施例中，接收机电路产生针对在发送期望信号和相关联的导频信号中不同传输扰码使用的补偿的期望信号的损害相关估计。 在一个实施例中，损害相关估计方法包括根据接收的CDMA信号中的导频信号来确定损害相关估计，如果期望的信号和导频信号在不同的传输扰码下被发送，则适配用于扰码效应的损害相关估计，并执行 基于所述损害相关估计，关于所述期望信号的一个或多个信号处理操作。 例如，在至少一个实施例中，接收机电路被配置为基于导频和期望的信号扰码之间的发射功率分配差异来补偿对应于期望信号的信号延迟的损害相关矩阵的元素。

公开(公告)号：US07916681B2

公开(公告)日：2011-03-29

申请号：US11296560

申请日：2005-12-07

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

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

IPC: H04B7/185

CPC classification number: H04W52/56 ,  H04B17/336 ,  H04B2201/709727 ,  H04W52/12

Abstract: A wireless communication device or system generates transmit power control feedback for a received power control channel by determining a command error rate (CER), or by identifying a target signal quality for the power control channel according to a defined signal-quality-to-CER mapping function. Generally, the power control channel does not include error-coded data to use for CER estimation. However, in one embodiment, the channel does include known reference bits that are evaluated for CER estimation, with the estimated CER used to set the signal quality target for inner loop power control. In other embodiments, a computed reception error probability is used to identify a CER estimate according to a defined probability-to-CER mapping function. By way of non-limiting example, these embodiments may be used to provide power control feedback for power control commands transmitted on a Fractional Dedicated Physical Channel in WCDMA systems.

Abstract translation: 无线通信设备或系统通过确定命令错误率（CER）或者通过根据定义的信号质量到CER来识别功率控制信道的目标信号质量来为接收到的功率控制信道生成发射功率控制反馈 映射功能。 通常，功率控制信道不包括用于CER估计的错误编码数据。 然而，在一个实施例中，信道确实包括对CER估计进行评估的已知参考比特，其中估计的CER用于设置用于内环功率控制的信号质量目标。 在其他实施例中，使用计算的接收错误概率来根据所定义的概率到CER映射函数来识别CER估计。 作为非限制性示例，这些实施例可以用于为在WCDMA系统中的分数专用物理信道上发送的功率控制命令提供功率控制反馈。

公开(公告)号：US20110002232A1

公开(公告)日：2011-01-06

申请号：US12829093

申请日：2010-07-01

Applicant: Jaroslaw Niewczas ,  Karsten Brueninghaus

Inventor： Jaroslaw Niewczas ,  Karsten Brueninghaus

IPC: H04L12/26

CPC classification number: H04B1/712 ,  H04B1/7085 ,  H04B1/7117 ,  H04B2201/709727

Abstract: Methods and wireless receivers (5) are disclosed for estimating a propagation channel response that includes two closely spaced delays. An exemplary method comprises selecting (720) a plurality of receiver processing delays for sampling the received signal so that that the receiver processing delays span two closely spaced channel response delays, and calculating (730) an average channel coefficient magnitude over at least a first number of time slots of the received signal, for each of the receiver processing delays. The exemplary method further comprises estimating (740) delay timing for each of the two channel response delays, based on the average channel coefficient magnitudes and a multi-delay superposition model for the channel response, and calculating (750) complex channel gains for each of the two channel response delays, based on the estimated delay timings and channel response measurements taken over a second number of time slots that is less than the first number of time slots.

Abstract translation: 公开了用于估计包括两个紧密间隔的延迟的传播信道响应的方法和无线接收器（5）。 一种示例性方法包括：选择（720）多个接收机处理延迟以对接收到的信号进行采样，使得接收机处理延迟跨越两个紧密间隔的信道响应延迟，并且计算（730）至少第一数量的平均信道系数幅度 的接收信号的时隙，用于每个接收机处理延迟。 该示例性方法还包括：基于平均信道系数幅度和用于信道响应的多延迟叠加模型来估计（740）两个信道响应延迟中的每一个的延迟定时，并且计算（750）每个信道响应的复信道增益 基于估计的延迟定时和通过小于第一数量的时隙的第二数量的时隙进行的信道响应测量的两个信道响应延迟。

公开(公告)号：US20100254436A1

公开(公告)日：2010-10-07

申请号：US12743727

申请日：2007-11-23

Applicant: Erik Larsson

Inventor： Erik Larsson

IPC: H04B1/707

CPC classification number: H04B1/71052 ,  H04B1/7115 ,  H04B1/712 ,  H04B2201/709727

Abstract: The present invention discloses a method of improved impairment covariance matrix estimation for a received signal in a Generalized Rake receiver arrangement, providing SIO a plurality N of despread pilot symbols representative of the signal, determining S20 an estimate of an impairment covariance matrix R for the received signal. Subsequently, providing S30 an estimate of scaling parameters a, β for the estimate R by means of a weighted least squares estimate based on the color of a residual noise vector for the impairment covariance matrix estimate R, and forming S40 an improved estimate of the impairment covariance matrix based on the weighted least squares estimate.

Abstract translation: 本发明公开了一种在广义Rake接收器装置中对接收信号进行改进的损害协方差矩阵估计的方法，为SIO提供表示信号的多个N个解扩导频符号，确定S20接收到的损害协方差矩阵R的估计 信号。 随后，提供S30对比例参数a，＆bgr的估计; 对于基于用于损害协方差矩阵估计R的残差噪声向量的颜色的加权最小二乘估计的估计R，并且基于加权最小二乘估计，形成S40改进的损害协方差矩阵的估计。

公开(公告)号：US07773951B2

公开(公告)日：2010-08-10

申请号：US11438921

申请日：2006-05-23

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

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

IPC: H04B17/00 ,  H04B7/00

CPC classification number: H04L1/0019 ,  H04B2201/709727 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/20 ,  H04L25/0202 ,  H04L25/0222 ,  H04L27/2647

Abstract: A method and apparatus for generating channel quality information, such as may be used for transmit link adaptation, provide different operating modes, such as a first mode that may be used when propagation channel estimates are not reliable, and a second mode that may be used when the propagation channel estimates are reliable. In one or more embodiments, channel quality information is generated using receiver performance information that characterizes receiver performance in terms of a defined channel quality metric, e.g., supported data rates, for different values of receiver input signal quality over a range of propagation channel realizations. Channel quality information can be generated by selecting channel quality metrics according to receiver input signal quality and a desired probability of meeting a defined performance requirement over a range of propagation channel realizations, or by selecting channel quality metrics according to receiver input signal quality and particularized propagation channel realizations.

Abstract translation: 用于产生信道质量信息的方法和装置，例如可以用于发送链路自适应，提供不同的操作模式，例如当传播信道估计不可靠时可以使用的第一模式，以及可以使用的第二模式 当传播信道估计是可靠的。 在一个或多个实施例中，使用接收机性能信息来生成信道质量信息，所述接收机性能信息根据定义的信道质量度量（例如，支持的数据速率），在传播信道实现范围内针对接收机输入信号质量的不同值来表征接收机性能。 可以通过根据接收机输入信号质量选择信道质量度量并且在传播信道实现范围内满足定义的性能要求的期望概率，或者通过根据接收机输入信号质量和特定传播选择信道质量度量来生成信道质量信息 渠道实现。

公开(公告)号：US07733942B2

公开(公告)日：2010-06-08

申请号：US11700099

申请日：2007-01-31

Applicant: Tsuyoshi Hasegawa

Inventor： Tsuyoshi Hasegawa

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B1/7103 ,  H04B2201/70707 ,  H04B2201/709727

Abstract: A receiving device and a receiving method enabling the high-speed and high-accuracy interference reducing process are provided. The interference reduction receiving device despreading digital signal at a plurality of timings, multiplying each of the signals after being despread by a weight and combining the signals, comprises an estimation unit estimating channel response vector having, as elements, channel estimation values corresponding to the respective timings based on the digital signal, a quantizing unit quantizing the digital signal in the vicinity of the respective timings, a signal correlation matrix generation unit generating a signal correlation matrix having, as the element, each signal correlation value calculated based on the respective quantized signals, and an weight calculating unit calculating the weight based on the channel response vector and the signal correlation matrix.

Abstract translation: 提供了能够实现高速和高精度干扰降低处理的接收装置和接收方法。 所述干扰减少接收装置在多个定时解扩数字信号，将每个所述信号进行解扩后乘以权重并组合所述信号，所述估计单元估计信道响应向量，具有作为元素的信道估计值， 基于数字信号的定时，对各定时附近的数字信号进行量化的量化单元，产生信号相关矩阵的信号相关矩阵，该信号相关矩阵具有基于各量化信号计算出的各信号相关值的信号相关矩阵 以及权重计算单元，基于信道响应向量和信号相关矩阵来计算权重。

公开(公告)号：US07724841B2

公开(公告)日：2010-05-25

申请号：US11538074

申请日：2006-10-03

Applicant: Gregory E. Bottomley ,  Carmela Cozzo

Inventor： Gregory E. Bottomley ,  Carmela Cozzo

IPC: H04L27/00

CPC classification number: H04L25/0242 ,  H04B1/712 ,  H04B2201/709727 ,  H04L25/0228

Abstract: Channel response and impairment correlation estimates are iteratively determined. According to one embodiment of performing channel estimation for use in received signal processing, a channel response estimate is calculated based on an initial impairment correlations estimate and a measured channel response derived from a received signal. A revised impairment correlations estimate is calculated using a parametric approach based on the channel response estimate and the channel response estimate is recalculated based on the revised impairment correlations estimate. According to one embodiment of a wireless communication device, the device comprises a parameter estimation unit configured to iteratively calculate a medium channel response estimate based on a parametric impairment correlations estimate and a measured net channel response derived from a received signal. The wireless communication device also comprises circuitry configured to control how many times the parameter estimation unit calculates the medium channel response estimate.

Abstract translation: 迭代确定信道响应和损害相关估计。 根据对在接收信号处理中使用的信道估计的一个实施例，基于初始损害相关估计和从接收信号导出的测量信道响应来计算信道响应估计。 使用基于信道响应估计的参数方法来计算修正的损害相关估计，并且基于修正的损害相关估计重新计算信道响应估计。 根据无线通信设备的一个实施例，该设备包括参数估计单元，该参数估计单元被配置为基于参数损害相关估计和从接收到的信号导出的测量的净信道响应来迭代地计算介质信道响应估计。 无线通信设备还包括被配置为控制参数估计单元计算媒体信道响应估计的次数的电路。

公开(公告)号：US07711765B2

公开(公告)日：2010-05-04

申请号：US11357816

申请日：2006-02-17

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

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

IPC: G06F15/00

CPC classification number: G06F7/5443 ,  H04B2201/709727

Abstract: A method and corresponding circuit for determining a final result for a desired series of multiply-and-accumulate (MAC) operations are based on counting the occurrence of products in the desired series of MAC operations, multiplying the counts by their corresponding products to obtain partial sums, and adding the partial sums to obtain the final result. MAC processing as taught herein can be applied to a wide range of applications, such as received signal processing in wireless communication for computationally efficient (and high-rate) generation of interference correlation estimates and/or equalization filter values for a received communication signal.

Abstract translation: 用于确定期望的一系列乘法和累加（MAC）操作的最终结果的方法和相应的电路是基于计算所需系列MAC操作中的乘积的发生，将计数乘以其相应乘积以获得部分 总和，并添加部分和以获得最终结果。 如本文教导的MAC处理可以应用于广泛的应用，例如用于无线通信中的接收信号处理，用于接收的通信信号的计算有效（和高速率）产生干扰相关估计和/或均衡滤波器值。

公开(公告)号：US07711033B2

公开(公告)日：2010-05-04

申请号：US11105797

申请日：2005-04-14

Applicant: Andres Reial ,  Douglas A. Cairns

Inventor： Andres Reial ,  Douglas A. Cairns

IPC: H04B1/00

CPC classification number: H04B17/309 ,  H04B2201/709727 ,  H04W52/223

Abstract: The present invention provides a method and apparatus for generating SIR estimates early in a time interval that include the benefits of interference suppression without requiring the computation of specific interference suppression elements. In particular, the present invention generates an SIR estimate for a RAKE receiver during a current time interval based on channel estimates generated based on the received signal(s). By applying an offset derived during a previous time interval to the RAKE SIR estimate, the present invention generates a second SIR estimate for a G-RAKE receiver.

Abstract translation: 本发明提供了一种用于在包括干扰抑制的优点的时间间隔早期产生SIR估计的方法和装置，而不需要计算特定的干扰抑制元件。 特别地，本发明基于基于接收到的信号生成的信道估计，在当前时间间隔内产生RAKE接收机的SIR估计。 通过将在先前时间间隔中导出的偏移应用于RAKE SIR估计，本发明为G-RAKE接收机生成第二SIR估计。