公开(公告)号：US20070116100A1

公开(公告)日：2007-05-24

申请号：US11412543

申请日：2006-04-27

Applicant: Bengt Lindoff ,  Bo Bernhardsson ,  Jonas Ohlsson

Inventor： Bengt Lindoff ,  Bo Bernhardsson ,  Jonas Ohlsson

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B2201/7071 ,  H04B2201/709727

Abstract: According to a method and apparatus taught herein, a Rake receiver circuit selectively operates with or without colored interference compensation, in dependence on current operating conditions. For example, in one embodiment the Rake receiver circuit comprises one or more processing circuits that are configured to generate Rake combining weights in a first mode of operation as first combining weights calculated from channel estimates corresponding to a set of Rake signal fingers. In a second mode, the processing circuit(s) generate the Rake combining weights as compensated combining weights obtained by compensating the first combining weights with second combining weights calculated from colored interference estimates corresponding to a set of Rake probing fingers.

Abstract translation: 根据本文教导的方法和装置，Rake接收器电路根据当前的操作条件选择性地在有或没有有色干涉补偿的情况下操作。 例如，在一个实施例中，Rake接收机电路包括一个或多个处理电路，其被配置为以第一操作模式生成Rake组合权重作为从对应于一组Rake信号指的信道估计计算的第一组合权重。 在第二模式中，处理电路产生Rake组合权重作为通过用对应于一组耙探测手指的有色干涉估计计算的第二组合权重来补偿第一组合权重而获得的补偿组合权重。

公开(公告)号：US20070076785A1

公开(公告)日：2007-04-05

申请号：US11241680

申请日：2005-09-30

Applicant: Andres Reial ,  Peter Malm

Inventor： Andres Reial ,  Peter Malm

IPC: H04B1/00

CPC classification number: H04B1/712 ,  H04B1/7117 ,  H04B2201/70701 ,  H04B2201/709727

Abstract: A method for use in receiving a spread-spectrum signal includes receiving an input signal. The input signal includes a first plurality of multipath components. The method also includes despreading the first plurality of multipath components. The step of despreading includes computing a plurality of corresponding delays. The method also includes computing a plurality of combining weights based, at least in part, on interference correlation between at least two of the first plurality of multipath components, selecting, according to at least one criterion, a subset of the plurality of combining weights, and despreading and combining a second plurality of multipath components using at least one quantity related to the selected plurality of combining weights and a plurality of delays and multipath components corresponding to the plurality of selected combining weights. 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: 一种用于接收扩频信号的方法包括接收输入信号。 输入信号包括第一多个多径分量。 该方法还包括解扩第一多个多路径分量。 解扩的步骤包括计算多个对应的延迟。 该方法还包括至少部分地基于第一多个多径分量中的至少两个之间的干扰相关来计算多个组合加权，根据至少一个准则，选择多个组合权重的子集， 以及使用与所选择的多个组合权重相关的至少一个数量和对应于所述多个选择的组合权重的多个延迟和多径分量来解扩和组合第二多个多径分量。 提供本摘要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内容的主题。 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：US20060281414A1

公开(公告)日：2006-12-14

申请号：US11150913

申请日：2005-06-13

Applicant: Bengt Lindoff ,  Johan Nilsson

Inventor： Bengt Lindoff ,  Johan Nilsson

IPC: H04B17/00

CPC classification number: H04B17/382 ,  H04B17/26 ,  H04B17/373 ,  H04B2201/709727

Abstract: A detection strategy is selected for use in detecting a shared control channel that is transmitted on a physical channel in a communication system. This involves using a previously selected detection strategy to detect the shared control channel. The power of the detected shared control channel is measured. At least two correlation results are generated by correlating the measured power with each of at least two parameters that are associated with one or more other physical channels used in the communication system. Based on the at least two correlation results, a detection strategy is selected for upcoming use in detecting the shared control channel.

Abstract translation: 选择检测策略用于检测在通信系统中在物理信道上发送的共享控制信道。 这涉及使用先前选择的检测策略来检测共享控制信道。 测量检测到的共享控制信道的功率。 通过将所测量的功率与与在通信系统中使用的一个或多个其它物理信道相关联的至少两个参数中的每一个进行相关来生成至少两个相关结果。 基于至少两个相关结果，为检测共享控制信道的即将使用选择检测策略。

公开(公告)号：US20060262840A1

公开(公告)日：2006-11-23

申请号：US11321709

申请日：2005-12-29

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

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

IPC: H04L5/16 ,  H04B17/00

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：US20060251024A1

公开(公告)日：2006-11-09

申请号：US10546154

申请日：2003-02-22

Applicant: Hai Wang

Inventor： Hai Wang

IPC: H04Q7/00

CPC classification number: H04B1/7103 ,  H04B7/022 ,  H04B17/318 ,  H04B2201/70702 ,  H04B2201/709727 ,  H04W52/34

Abstract: The present invention relates to an apparatus and method for estimating down link wide-band interference power and noise power in a mobile communications system. By using filters that are matched to the multipath channels of a number of base stations the received powers from the base stations may be differentiated and calculated. The impulse responses of the multipath channels are estimated and the filters are matched such that the impulse response of each filter is the complex conjugate of the time reverse of the estimated impulse response of one of the multipath channels. White noise is modelled as a signal that has passed a single-ray channel. The received noise power is estimated by means of the output signals from the matched filters and the total received signal.

Abstract translation: 本发明涉及用于在移动通信系统中估计下行链路宽带干扰功率和噪声功率的装置和方法。 通过使用与多个基站的多路径信道匹配的滤波器，可以区分并计算来自基站的接收功率。 估计多路径信道的脉冲响应，并且滤波器被匹配，使得每个滤波器的脉冲响应是多路径信道之一的估计脉冲响应的时间反向的复共轭。 白噪声被建模为已经通过单光道的信号。 通过来自匹配滤波器的输出信号和总接收信号来估计接收噪声功率。

公开(公告)号：US20060182204A1

公开(公告)日：2006-08-17

申请号：US11402676

申请日：2006-04-12

Applicant: Douglas Cairns ,  Gregory Bottomley

Inventor： Douglas Cairns ,  Gregory Bottomley

IPC: H04L27/06

CPC classification number: H04L25/03044 ,  H04B1/7117 ,  H04B1/712 ,  H04B2201/70707 ,  H04B2201/709727 ,  H04L2025/03477 ,  H04L2025/03515

Abstract: A receiver includes a baseband processor for selecting a set of demodulation processing delays for received signal demodulation from a larger set of candidate delays. In one embodiment, the baseband processor selects the set of demodulation processing delays by calculating at least one metric for each demodulation processing delay in the set of candidate delays, iteratively reducing the set of candidate delays by eliminating one or more demodulation processing delays from the set as a function of comparing the metrics, and setting the processing delays for received signal demodulation to the candidate delays remaining after reduction. In a Generalized RAKE (G-RAKE) embodiment, the metric corresponds to combining weight magnitudes associated with G-RAKE finger delays. In a chip equalizer embodiment, the metric corresponds to coefficient magnitudes associated with equalization filter tap delays. In other embodiments, the metric corresponds to Signal to Interference Ratios (SIRs) associated with the set of candidate delays.

Abstract translation: 接收机包括基带处理器，用于从更大的一组候选延迟中选择用于接收信号解调的一组解调处理延迟。 在一个实施例中，基带处理器通过针对候选延迟集合中的每个解调处理延迟计算至少一个度量来选择一组解调处理延迟，通过从集合中消除一个或多个解调处理延迟来迭代地减少候选延迟集合 作为比较度量的函数，以及将接收信号解调的处理延迟设置为在还原之后剩余的候选延迟。 在广义RAKE（G-RAKE）实施例中，度量对应于与G-RAKE手指延迟相关联的重量幅度。 在码片均衡器实施例中，度量对应于与均衡滤波器抽头延迟相关联的系数幅度。 在其他实施例中，度量对应于与该组候选延迟相关联的信号与干扰比（SIR）。

公开(公告)号：US20050265496A1

公开(公告)日：2005-12-01

申请号：US10526396

申请日：2002-09-03

Applicant: Klas Johansson ,  Johan Andersson ,  Oskar Mauritz

Inventor： Klas Johansson ,  Johan Andersson ,  Oskar Mauritz

IPC: H04B1/707 ,  H04L1/02 ,  H04B1/10 ,  H04B7/10 ,  H04L25/08

CPC classification number: H04B1/712 ,  H04B2201/709727

Abstract: A receiver for use in a communications system, said receiver comprising a plurality of receiving means, at least two of said receiving means arranged to process the same signal received at different times; means for combining the output of at least two of said receiving means with different weights, said weights being arranged to take into account information relating to a spreading code of at least one signal other than said same signal.

Abstract translation: 一种用于通信系统的接收机，所述接收机包括多个接收装置，所述接收装置中的至少两个被设置为处理在不同时间接收的相同信号; 用于将所述接收装置中的至少两个的输出与不同权重组合的装置，所述权重被配置为考虑与除了所述相同信号之外的至少一个信号的扩展码相关的信息。

公开(公告)号：US20050201447A1

公开(公告)日：2005-09-15

申请号：US10800167

申请日：2004-03-12

Applicant: Douglas Cairns ,  Gregory Bottomley ,  Yi-Pin Wang ,  Tracy Fulghum ,  Elias Jonsson

Inventor： Douglas Cairns ,  Gregory Bottomley ,  Yi-Pin Wang ,  Tracy Fulghum ,  Elias Jonsson

IPC: H04B1/707

CPC classification number: H04B1/712 ,  H04B2201/709727

Abstract: Exemplary received signal processing may be based on maintaining a model of received signal impairment correlations, wherein each term of the model is updated periodically or as needed based on measuring impairments for a received signal of interest. An exemplary model comprises an interference impairment term scaled by a first model fitting parameter, and a noise impairment term scaled by a second model fitting parameters. The model terms may be maintained based on current channel estimates and delay information and may be fitted to measured impairment by adapting the model fitting parameters based on the measured impairment. The modeled received signal impairment correlations may be used to compute RAKE combining weights for received signal processing, or to compute Signal-to-Interference (SIR) estimates. Combined or separate models may be used for multiple received signals. As such, the exemplary modeling is extended to soft handoff, multiple antennas, and other diversity situations.

Abstract translation: 示例性的接收信号处理可以基于维持接收信号损害相关的模型，其中基于感兴趣的接收信号的测量损伤，模型的每个项被周期性地或根据需要更新。 示例性模型包括由第一模型拟合参数缩放的干扰损害项和由第二模型拟合参数缩放的噪声损伤项。 模型条款可以根据当前的渠道估计和延迟信息进行维护，并且可以通过根据测量的损失调整模型拟合参数来适应测量的损益。 建模的接收信号损害相关可用于计算接收信号处理的RAKE组合权重，或用于计算信号与干扰（SIR）估计。 组合或分离的模型可用于多个接收信号。 因此，示例性建模被扩展到软切换，多个天线和其他分集情况。

公开(公告)号：US20030215003A1

公开(公告)日：2003-11-20

申请号：US10151682

申请日：2002-05-20

Inventor： Gregory E. Bottomley ,  Ali S. Khayrallah

IPC: H04B001/707

CPC classification number: H04B1/7115 ,  H04B1/7117 ,  H04B2001/70935 ,  H04B2201/70705 ,  H04B2201/70707 ,  H04B2201/709727 ,  H04J13/0048

Abstract: A flexible Fast Walsh Transform circuit provides configurable FWT sizes, and is suitable for use in radio receivers where the received signal may be generated using varying spreading codes and/or varying numbers of multi-codes. Such signal types are commonly encountered in wireless communication systems like those based on the Wideband CDMA (W-CDMA) or IS-2000 (cdma2000) standards, and particularly with the higher data rate provisions of those standards. In one application, a RAKE receiver includes RAKE fingers that each include one of the flexible FWT circuits, such that each finger despreads the received signal using variably sized FWTs in accordance with the characteristics of the received signal. The flexibility in FWT sizing may derive from, for example, the inclusion of separately selectable but differently sized FWT circuits, or from the inclusion of a configurable FWT circuit capable of generating different sizes of FWTs.

Abstract translation: 灵活的快速沃尔什变换电路提供可配置的FWT大小，并且适用于无线电接收机，其中接收信号可以使用变化的扩展码和/或不同数量的多码来产生。 在诸如基于宽带CDMA（W-CDMA）或IS-2000（cdma2000）标准的无线通信系统中通常遇到这样的信号类型，特别是在这些标准的较高数据速率规定中。 在一个应用中，RAKE接收机包括RAKE指，其中每个包括柔性FWT电路之一，使得每个指根据接收信号的特性使用可变大小的FWT来解扩接收信号。 FWT尺寸的灵活性可以来自例如包括单独可选择但不同尺寸的FWT电路，或者包括能够产生不同大小的FWT的可配置FWT电路。

公开(公告)号：US6148023A

公开(公告)日：2000-11-14

申请号：US333978

申请日：1999-06-16

Applicant: Per Pelin ,  Soren Anderson

Inventor： Per Pelin ,  Soren Anderson

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7115 ,  H04B1/712 ,  H04B7/005 ,  H04B7/04 ,  H04L25/02 ,  H04L25/03 ,  H04L1/00

CPC classification number: H04B1/7115 ,  H04B1/707 ,  H04B1/7073 ,  H04L25/025 ,  H04L25/03012 ,  H04L25/0328 ,  H04B1/712 ,  H04B2201/709727 ,  H04B7/04 ,  H04L2025/03401

Abstract: Methods and systems for processing received radio signals are described wherein the finite alphabet quality of digital transmissions is utilized to improve performance. Nonsynchronous sampling of received signals introduces intersymbol interference which is compensated for by these methods and systems. Different types of signal modulation, and their impact on this type of intersymbol interference are discussed. A robust diversity combining technique, usable in conjunction with antenna arrays is developed.

Abstract translation: 描述了用于处理接收到的无线电信号的方法和系统，其中利用数字传输的有限字母质量来提高性能。 接收信号的非同步采样引入符号间干扰，由这些方法和系统补偿。 讨论了不同类型的信号调制及其对这种类型符号间干扰的影响。 开发了可与天线阵列结合使用的强大的分集组合技术。