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1. 发明申请

WO2007089180A1 CYCLIC REDUNDANCY IN OFDM SYSTEMS 审中-公开
标题翻译： OFDM系统中的循环冗余
公开(公告)号：WO2007089180A1
公开(公告)日：2007-08-09
申请号：PCT/SE2006/000161
申请日：2006-02-03
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , BOTTOMLEY, Gregory, E. , WILHELMSSON, Leif
发明人： BOTTOMLEY, Gregory, E. , WILHELMSSON, Leif
IPC分类号： H04L27/26 , H04J11/00
CPC分类号： H04L25/022 , H04L5/0017 , H04L5/0023 , H04L27/2607 , H04L27/265 , H04L27/2653 , H04L27/2662 , H04W16/14
摘要： Method, communication system, receiver, baseband processor and computer program for recovering data from a received OFDM-signal containing recurrent redundant information where part of the recurrent redundant information is used to maximize the SINR (Signal to Interference plus Noise Ratio) of the received OFDM-signal.
摘要翻译：方法，通信系统，接收机，基带处理器和计算机程序，用于从包含循环冗余信息的接收的OFDM信号中恢复数据，其中部分循环冗余信息用于使接收的OFDM的SINR（信号干扰加噪声比）最大化 -信号。

2. 发明申请

WO2010070419A2 UPLINK MULTI-CELL SIGNAL PROCESSING FOR INTERFERENCE SUPPRESSION 审中-公开
标题翻译：用于干扰抑制的UPLINK多信号信号处理
公开(公告)号：WO2010070419A2
公开(公告)日：2010-06-24
申请号：PCT/IB2009/007768
申请日：2009-12-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Yi-Pin Eric , GUNNARSSON, Fredrik , BOTTOMLEY, Gregory, E. , WIBERG, Niclas
发明人： WANG, Yi-Pin Eric , GUNNARSSON, Fredrik , BOTTOMLEY, Gregory, E. , WIBERG, Niclas
IPC分类号： H04B1/707 , H04B7/08
CPC分类号： H04B1/7103 , H04B7/0891
摘要： A node (e.g., base station, signal processing unit) is described herein that includes a symbol detector and a method which are capable of suppressing interference caused by one user device (which may be in softer handoff mode) to reduce performance degradation to other intra-cell user devices and/or other inter-cell user devices (which may not be in softer handoff mode).
摘要翻译：本文描述了一种节点（例如，基站，信号处理单元），其包括符号检测器和方法，其能够抑制由一个用户设备（其可能处于更软切换模式）引起的干扰，以降低其他内部 - 小区用户设备和/或其他小区间用户设备（其可能不处于更软切换模式）。

3. 发明申请

WO2006128609A1 ADAPTIVE TIMING RECOVERY VIA GENERALIZED RAKE CONCEPTION 审中-公开
标题翻译：自适应时间恢复通过通用RAKE概念
公开(公告)号：WO2006128609A1
公开(公告)日：2006-12-07
申请号：PCT/EP2006/004839
申请日：2006-05-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E. , WANG, Yi-Pin-Eric
发明人： CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E. , WANG, Yi-Pin-Eric
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7117 , H04B2201/709727
摘要： A method and apparatus for determining operating modes in a receiver is described herein. A delay searcher in the receiver detects a signal image in the received signal. When the receiver is a RAKE receiver, a plurality of RAKE fingers coherently combine time-shifted versions of the received signal at different delays. Alternatively, when the receiver is a chip equalization receiver, an FIR filter coherently pre-combines the signal images in the received signal. A processor determines delays. In particular, the processor generates a first signal quality metric for a single-delay receiver mode, and generates a second signal quality metric for a multi-delay receiver mode. Based on a comparison of the first and second signal quality metrics, the processor selects the single-delay or the multi-delay receiver mode for processing the signal image.
摘要翻译：本文描述了用于确定接收机中的操作模式的方法和装置。接收机中的延迟搜索器检测接收信号中的信号图像。当接收机是RAKE接收机时，多个RAKE指头以不同的延迟相干地组合接收信号的时移版本。或者，当接收机是芯片均衡接收机时，FIR滤波器相干地预组合接收信号中的信号图像。处理器确定延迟。特别地，处理器为单延迟接收器模式产生第一信号质量度量，并且产生用于多延迟接收器模式的第二信号质量度量。基于第一和第二信号质量度量的比较，处理器选择用于处理信号图像的单延迟或多延迟接收器模式。

4. 发明申请

WO2006122779A1 METHOD AND APPARATUS FOR COMMUNICATION CHANNEL ERROR RATE ESTIMATION 审中-公开
标题翻译：通信信道误差估计的方法和装置
公开(公告)号：WO2006122779A1
公开(公告)日：2006-11-23
申请号：PCT/EP2006/004670
申请日：2006-05-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , ANDERSSON, Lennart , WANG, Yi-Pin, Eric , BOTTOMLEY, Gregory, E.
发明人： ANDERSSON, Lennart , WANG, Yi-Pin, Eric , BOTTOMLEY, Gregory, E.
IPC分类号： H04B7/005
CPC分类号： H04W52/56 , H04B17/336 , H04B2201/709727 , H04W52/12
摘要： 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.
摘要翻译：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。

5. 发明申请

WO2005096517A1 METHOD AND APPARATUS FOR PARAMETER ESTIMATION IN A GENERALIZED RAKE RECEIVER 审中-公开
标题翻译：广义RAKE接收机中参数估计的方法和装置
公开(公告)号：WO2005096517A1
公开(公告)日：2005-10-13
申请号：PCT/EP2005/002419
申请日：2005-03-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E. , WANG, Yi-Pin, Eric , FULGHUM, Tracy , JONSSON, Elias
发明人： CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E. , WANG, Yi-Pin, Eric , FULGHUM, Tracy , JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7103 , H04B2201/709727
摘要： 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.
摘要翻译：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，其中每个项。根据感兴趣的接收信号的测量损伤，周期性地或根据需要更新模型。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拟合测量的损失。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。

6. 发明申请

WO2010049782A1 ROOT SPREADING CODE BASED ASSIGNMENT FOR HSDPA 审中-公开
标题翻译：基于HSDPA的基于扩展代码的分配
公开(公告)号：WO2010049782A1
公开(公告)日：2010-05-06
申请号：PCT/IB2009/007226
申请日：2009-10-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Yi-Pin Eric , BOTTOMLEY, Gregory, E.
发明人： WANG, Yi-Pin Eric , BOTTOMLEY, Gregory, E.
IPC分类号： H04J11/00
CPC分类号： H04J13/20 , H04B1/7105
摘要： A base station is described herein that uses a root spreading code based code assignment to transmit signals to a mobile station. The mobile station can then suppress intra-block interference by effectively using a joint detection technique or a non- linear equalization technique to detect the transmitted symbols.
摘要翻译：本文描述了使用基于根扩展码的代码分配来向移动台发送信号的基站。然后，移动站可以通过有效地使用联合检测技术或非线性均衡技术来检测所发送的符号来抑制块内干扰。

7. 发明申请

WO2007093336A1 METHOD AND APPARATUS TO PERFORM MULTIPLY-AND-ACCUMULATE OPERATIONS 审中-公开
标题翻译：执行多重和累加操作的方法和装置
公开(公告)号：WO2007093336A1
公开(公告)日：2007-08-23
申请号：PCT/EP2007/001157
申请日：2007-02-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , WANG, Yi-Pin Eric , BOTTOMLEY, Gregory, E. , REIAL, Andres
发明人： WANG, Yi-Pin Eric , BOTTOMLEY, Gregory, E. , REIAL, Andres
IPC分类号： G06F7/544
CPC分类号： G06F7/5443 , H04B2201/709727
摘要： 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.
摘要翻译：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，例如无线通信中的接收信号处理，用于对接收到的通信信号计算有效（和高速率）产生干扰相关估计和/或均衡滤波器值。

8. 发明申请

WO2011080645A1 ITERATIVE DECODING AND DEMODULATION WITH FEEDBACK ATTENUATION 审中-公开
标题翻译：具有反馈衰减的迭代解码和解调
公开(公告)号：WO2011080645A1
公开(公告)日：2011-07-07
申请号：PCT/IB2010/055852
申请日：2010-12-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KHAYRALLAH, Ali, S. , BOTTOMLEY, Gregory, E. , CHENG, Jung-Fu
发明人： KHAYRALLAH, Ali, S. , BOTTOMLEY, Gregory, E. , CHENG, Jung-Fu
IPC分类号： H03M13/29 , H03M13/37
CPC分类号： H03M13/2987 , H03M13/2957 , H03M13/296 , H03M13/3707 , H03M13/6325 , H03M13/6561 , H03M13/658 , H03M13/6591 , H04L1/005 , H04L25/03286
摘要： An iterative demodulator and decoder uses feedback attenuation to maintain proper balance between the demodulator and decoder. Balance is maintained by attenuating the influence of extrinsic information fed back from the decoder to the demodulator to prevent strong decisions by the decoder from overwhelming the demodulator.
摘要翻译：迭代解调器和解码器使用反馈衰减来维持解调器和解码器之间的适当平衡。通过衰减从解码器反馈到解调器的外部信息的影响来维持平衡，以防止解码器强制解调器压倒解调器。

9. 发明申请

WO2011007334A2 INTERFERER REGION IDENTIFICATION USING IMAGE PROCESSING 审中-公开
标题翻译：利用图像处理进行干扰区域识别
公开(公告)号：WO2011007334A2
公开(公告)日：2011-01-20
申请号：PCT/IB2010/053238
申请日：2010-07-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E.
发明人： MOLNAR, Karl, J. , BOTTOMLEY, Gregory, E.
CPC分类号： H04J11/0023 , G06T1/00 , H04L27/2647
摘要： Demodulation and interference parameter estimation m an OFDM receiver is improved by identifying regions, in a two-dimensional arras of time-frequency transmission positions, having related interference parameters, such as resulting from the same pre-coding scheme, transmission rank, transmitting antennas, and the like. An interference measure is estimated for each of a plurality of time-frequency positions. The interference measures are analyzed by considering them as pixels, or picture elements, in a two-dimensional image, and applying image processing algorithm to identify the regions having related interference parameters The image processing algorithms may include operations such as edge detection, segmentation, and or clustering The receiver may perform interference suppression or cancellation such as interference rejection combining of data extracted from signals received within an identified time-frequency region having related interference parameters.
摘要翻译： OFDM接收机中的解调和干扰参数估计通过识别在时频传输位置的二维阵列中具有相关干扰参数的区域而得到改进，所述相关干扰参数例如来自相同的预编码方案，传输秩，发射天线等。针对多个时频位置中的每一个估计干扰量度。通过将干涉测量视为二维图像中的像素或图像元素并应用图像处理算法来识别具有相关干涉参数的区域来分析干涉测量。图像处理算法可包括诸如边缘检测，分割和或群集接收机可以执行干扰抑制或消除，诸如从在具有相关干扰参数的识别时间频率区域内接收的信号中提取的数据的干扰抑制组合。

10. 发明申请

WO2007115581A1 METHOD AND APPARATUS FOR SELECTING DEMODULATION PROCESSING DELAYS IN A RECEIVER 审中-公开
标题翻译：用于选择接收器中的解调处理延迟的方法和装置
公开(公告)号：WO2007115581A1
公开(公告)日：2007-10-18
申请号：PCT/EP2006/003698
申请日：2006-04-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E.
发明人： CAIRNS, Douglas, A. , BOTTOMLEY, Gregory, E.
IPC分类号： H04B1/707
CPC分类号： H04L25/03044 , H04B1/7117 , H04B1/712 , H04B2201/70707 , H04B2201/709727 , H04L2025/03477 , H04L2025/03515
摘要： 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.
摘要翻译：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）。

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