公开(公告)号：US07986930B2

公开(公告)日：2011-07-26

申请号：US11949481

申请日：2007-12-03

Applicant: Bengt Lindoff ,  Andres Reial

Inventor： Bengt Lindoff ,  Andres Reial

IPC: H04B1/10 ,  H04K3/00

CPC classification number: H04L27/3863 ,  H03D3/009 ,  H04L2027/0024

Abstract: A wireless communication system receiver compensates a received signal containing an IQ gain imbalance prior to performing frequency correction. The IQ gain imbalance in the signal is estimated after frequency correction, providing an IQ gain imbalance estimate for subsequent IQ gain imbalance compensation. The IQ gain imbalance estimation includes formulating a plurality of hypotheses of phase error between I and Q signal components, and taking as the actual phase error the hypothesis that yields the maximum power ratio between I and Q signal components. The maximum power ratio is differentiated with respect to the IQ imbalance estimate. The IQ gain imbalance estimate is updated as a function of its prior value(s), the maximum power ratio, and the derivative of the maximum power ratio.

Abstract translation: 无线通信系统接收机在执行频率校正之前补偿包含IQ增益不平衡的接收信号。 在频率校正之后估计信号中的IQ增益不平衡，为随后的IQ增益不平衡补偿提供IQ增益不平衡估计。 IQ增益不平衡估计包括制定I和Q信号分量之间的相位误差的多个假设，并且将实际的相位误差作为产生I和Q信号分量之间的最大功率比的假设。 相对于IQ不平衡估计，最大功率比是不同的。 IQ增益不平衡估计作为其先前值，最大功率比和最大功率比的导数的函数进行更新。

公开(公告)号：US07822104B2

公开(公告)日：2010-10-26

申请号：US10558500

申请日：2004-05-14

Applicant: Andres Reial

Inventor： Andres Reial

IPC: H04B1/00

CPC classification number: H04B1/7113 ,  H04B1/70754 ,  H04B1/7117

Abstract: Multipath components of a signal transmitted through a time-varying digital radio channel are received with individual delays (τ) within a range of possible delay values. An instantaneous delay profile indicating an instantaneous magnitude (g(τ)) for each of a number of individual delays (τ) is calculated repetitively, and an averaged delay profile indicating an averaged magnitude for the individual delays is generated from a number of repetitively calculated instantaneous delay profiles. The averaged delay profile is limited to comprise only delay values in a subset (W1, W2, W3) of the range of possible delay values. The delay of each individual multipath component is estimated from the averaged delay profile; and at least some estimated delays are used for RAKE combining. In this way, the benefits of an averaged delay profile are achieved without the need for the additional storage and computational resources normally required by a general averaged delay profile image.

Abstract translation: 通过时变数字无线电信道发送的信号的多路径分量在可能的延迟值的范围内以各个延迟（τ）被接收。 对于多个个体延迟（τ）中的每一个延迟指示瞬时幅度（g（τ））的瞬时延迟分布被重复地计算，并且指示各个延迟的平均幅度的平均延迟分布是从多次重复计算的 瞬时延迟曲线。 平均延迟分布被限制为仅包括可能延迟值范围的子集（W1，W2，W3）中的延迟值。 每个单独的多路径分量的延迟是从平均的延迟分布估计的; 并且至少一些估计的延迟用于RAKE组合。 以这种方式，实现平均延迟分布的优点，而不需要通常平均延迟分布图像通常需要的附加存储和计算资源。

公开(公告)号：US20090316591A1

公开(公告)日：2009-12-24

申请号：US12392433

申请日：2009-02-25

Applicant: Andres Reial ,  Bengt Lindoff ,  Anders Rosenqvist

Inventor： Andres Reial ,  Bengt Lindoff ,  Anders Rosenqvist

IPC: H04L12/26 ,  H04W72/00 ,  H04B17/00

CPC classification number: H04L1/0023 ,  H04W72/1231 ,  H04W72/1284

Abstract: A base station receives channel quality reports from a plurality of mobile terminals. The channel quality reports from the mobile terminals indicate the signal power of the signals received by the mobile terminals from the base station and one or more interference parameters relating to the power of impairment components contributing to the total impairment of the received signal during a first time interval. The base station computes an estimated channel quality indication for a second time interval subsequent to the first time interval based on expected variations in the powers of the impairment components. The estimated channel quality indication for the second time interval is used by the base station to schedule the mobile terminals and to determine the transmission format.

Abstract translation: 基站从多个移动终端接收信道质量报告。 来自移动终端的信道质量报告指示移动终端从基站接收的信号的信号功率，以及与第一次接收到的信号的总损害有关的损伤分量的功率有关的一个或多个干扰参数 间隔。 基站在第一时间间隔之后的第二时间间隔基于损伤分量的功率的预期变化来计算估计的信道质量指示。 第二时间间隔的估计信道质量指示由基站用于调度移动终端并确定传输格式。

公开(公告)号：US20090034666A1

公开(公告)日：2009-02-05

申请号：US11832695

申请日：2007-08-02

Applicant: Bengt Lindoff ,  Andres Reial

Inventor： Bengt Lindoff ,  Andres Reial

IPC: H04B1/10

CPC classification number: H04B1/707 ,  H04B1/123 ,  H04B1/30 ,  H04B2201/709727 ,  H04L25/0212 ,  H04L27/3863 ,  H04L2027/0016

Abstract: A WCDMA receiver performs baseband suppression of the image signal component caused by IQ imbalance. An IQ imbalance image scaling factor is computed from conventional channel estimates and estimates of the IQ imbalance image channel, the latter computed using a conjugated scrambling sequence as the reference sequence for despreading. An IQ imbalance image estimate is obtained by scaling the complex conjugate of the received signal by the IQ imbalance image scaling factor, and is subtracted from the input signal prior to applying traditional baseband demodulation algorithms.

Abstract translation: WCDMA接收机对IQ不平衡引起的图像信号分量进行基带抑制。 从常规信道估计和IQ不平衡图像信道的估计计算IQ不平衡图像缩放因子，后者使用共轭加扰序列作为解扩的参考序列计算。 通过将接收信号的复共轭缩放IQ平衡图像缩放因子，获得IQ不平衡图像估计，并且在应用传统的基带解调算法之前从输入信号中减去IQ不平衡图像估计。

公开(公告)号：US07480356B2

公开(公告)日：2009-01-20

申请号：US11007685

申请日：2004-12-08

Applicant: Andres Reial

Inventor： Andres Reial

IPC: H04B1/10

CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2201/7071

Abstract: A signal-path-selection method in a RAKE receiver includes producing C channel estimates from M received signal paths, determining a plurality of best signal paths using the C produced channel estimates, choosing A signal paths of the plurality of best signal paths in accordance with at least one pre-determined criterion, and combining the A signal paths. C is a measure of channel-estimation capacity of the RAKE receiver. M is greater than C. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract translation: RAKE接收机中的信号路径选择方法包括从M个接收信号路径产生C信道估计，使用C个产生的信道估计来确定多个最佳信号路径，根据该信道估计选择多个最佳信号路径的A个信号路径 至少一个预定标准，并组合A信号路径。 C是RAKE接收机的信道估计容量的度量。 M大于C.本摘要被提供以符合要求摘要的规则，允许搜索者或其他读者快速确定技术公开的主题。 提交本摘要的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

公开(公告)号：US20090003377A1

公开(公告)日：2009-01-01

申请号：US11944773

申请日：2007-11-26

Applicant: Lennart Andersson ,  Andres Reial

Inventor： Lennart Andersson ,  Andres Reial

IPC: H04J15/00

CPC classification number: H04L1/0072 ,  H03M13/3738 ,  H03M13/3776 ,  H03M13/41 ,  H03M13/653 ,  H04L1/0054 ,  H04L1/1812 ,  H04L1/20 ,  H04L1/208

Abstract: Methods and apparatus are disclosed for detecting a control channel message transmitted on one of a plurality of shared control channels and targeted to a wireless receiver. In an exemplary method, messages transmitted over a plurality of shared control channels are decoded, and at least one likelihood metric is determined for each of the decoded messages. A best candidate is selected from the decoded messages, based on the likelihood metrics, and the at least one likelihood metric for the best candidate is compared to corresponding likelihood metrics for the messages other than the best candidate to determine whether the best candidate is a valid message. Wireless communication receivers configured correspondingly are also disclosed.

Abstract translation: 公开了用于检测在多个共享控制信道之一上发送并针对无线接收机的控制信道消息的方法和装置。 在示例性方法中，解码在多个共享控制信道上发送的消息，并且为每个解码的消息确定至少一个似然度量。 基于似然度量从解码的消息中选择最佳候选者，并且将最佳候选的至少一个似然度量与除最佳候选之外的消息的对应似然度量进行比较，以确定最佳候选是否是有效的 信息。 还公开了相应配置的无线通信接收机。

公开(公告)号：US20080101443A1

公开(公告)日：2008-05-01

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：US20070244953A1

公开(公告)日：2007-10-18

申请号：US11357816

申请日：2006-02-17

Applicant: Yi-Pin Wang ,  Gregory Bottomley ,  Andres Reial

Inventor： Yi-Pin Wang ,  Gregory Bottomley ,  Andres Reial

IPC: G06F7/38

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：US20070237266A1

公开(公告)日：2007-10-11

申请号：US11279287

申请日：2006-04-11

Applicant: Andres Reial ,  Peter Malm

Inventor： Andres Reial ,  Peter Malm

IPC: H03D1/00 ,  H04B1/00

CPC classification number: H04B1/70755 ,  H04B1/7077

Abstract: Hypothesis tests, such as maximum likelihood detections, are executed on symbol sequences received by, for example, a user equipment (UE) in a communication system. The hypothesis tester checks a received sequence against a group of predetermined sequences that possibly could have been sent to the UE. For received sequences that are matched or not matched by the hypothesis tester with high confidence, complete decoding, for example, with a Viterbi decoder, is not necessary. Instead, complete decoding is used as a “tie-breaker” for those sequences which the hypothesis tester cannot match or not match with desired confidence levels.

Abstract translation: 在例如通信系统中的用户设备（UE）接收的符号序列上执行诸如最大似然检测的假设检验。 假设测试者根据可能已经发送给UE的一组预定序列来检查接收到的序列。 对于具有高置信度的假设检验者匹配或不匹配的接收序列，例如使用维特比解码器，完全解码是不必要的。 相反，完全解码被用作假设检验者不能匹配或不符合期望置信水平的那些序列的“断路器”。

公开(公告)号：US07142586B2

公开(公告)日：2006-11-28

申请号：US10246873

申请日：2002-09-18

Applicant: Andres Reial

Inventor： Andres Reial

IPC: H04B1/707

CPC classification number: H04B1/7113 ,  H04B1/7117

Abstract: In a robust delay estimator system and method, an average PDP buffer serves as a source of reliable control information to other stages of the delay estimator. The PDP output from every path searcher and tuning finger pass is accumulated in the average PDP buffer, which maintains average PDP estimates for the whole allowable delay spread range. The current (i.e., instantaneous) PDP estimate is then added to the average PDP using an exponential averaging method. The average PDP buffer stores the current PDP estimate and the average PDP estimate, as well as timing and other types of information regarding the estimates. The information in the average PDP provides the necessary information for, and is used to control the operation of, all the individual sub-stages of the delay estimation process.

Abstract translation: 在鲁棒的延迟估计器系统和方法中，平均PDP缓冲器作为延迟估计器的其他级的可靠控制信息的源。 来自每个路径搜索器和调谐手指通道的PDP输出被累积在平均PDP缓冲器中，其维持整个可允许延迟扩展范围的平均PDP估计。 然后使用指数平均方法将当前（即瞬时）PDP估计值加到平均PDP。 平均PDP缓冲器存储当前PDP估计和平均PDP估计，以及关于估计的时间和其他类型的信息。 平均PDP中的信息为延迟估计处理的所有子级提供必要的信息，并用于控制所有子级的操作。