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31. 发明申请

US20120093263A1 Method and Apparatus for Interference Suppression using a Reduced-Complexity Joint Detection 有权
标题翻译：使用简化复杂度联合检测的干扰抑制方法和装置
公开(公告)号：US20120093263A1
公开(公告)日：2012-04-19
申请号：US12903836
申请日：2010-10-13
申请人： Anders Rosenqvist , Niklas Andgart , Bo Bernhardsson
发明人： Anders Rosenqvist , Niklas Andgart , Bo Bernhardsson
IPC分类号： H04L27/06
CPC分类号： H04L25/023 , H04L25/03305 , H04L2025/03401 , H04L2025/03414 , H04L2025/0342 , H04L2025/03426
摘要： A method of detecting a desired signal within a composite signal provides for suppression of interfering signal(s). The method, implemented in a wireless communication apparatus, for example, includes receiving the composite signal and obtaining sample values therefrom. At least some of the sample values include desired and interfering signal components. The method further includes generating an interfering signal channel estimate by: forming sample pairs for some or all of the sample values; identifying sample pairs of interest as those sample pairs in which the interfering signal component is the same; and calculating the interfering signal channel estimate as an average value determined from one or more of the sample pairs of interest. The method further includes detecting desired signal symbols from the composite signal in a joint detection process that functionally depends on the interfering signal channel estimate.
摘要翻译：在复合信号内检测期望信号的方法提供了抑制干扰信号。例如，在无线通信装置中实现的方法包括接收复合信号并从中获取样本值。至少一些样本值包括期望的和干扰的信号分量。该方法还包括：通过以下方式产生干扰信号信道估计：为样本值的某些或全部形成样本对; 将感兴趣的样本对识别为其中干扰信号分量相同的样本对; 以及将干扰信号信道估计值计算为从感兴趣的一个或多个样本对确定的平均值。该方法还包括在功能上取决于干扰信号信道估计的联合检测过程中从复合信号中检测所需信号符号。

32. 发明申请

US20100159862A1 Method and Apparatus for Frequency Control in Wireless Communications 有权
标题翻译：无线通信中频率控制的方法与装置
公开(公告)号：US20100159862A1
公开(公告)日：2010-06-24
申请号：US12337964
申请日：2008-12-18
申请人： Andres Reial , Bo Bernhardsson , Xiaohui Wang
发明人： Andres Reial , Bo Bernhardsson , Xiaohui Wang
IPC分类号： H04B1/06 , H04B1/16
CPC分类号： H03J7/02
摘要： The automatic frequency correction value applied by a receiver is altered to minimize long-term drift of a path delay profile. In one embodiment, the phase or timing error resulting from constant frequency corrections is accumulated, and an estimated frequency correction value is selectively quantized into an actual frequency correction value in response to the accumulated phase/timing error. The quantized value above or below the estimate is selected to minimize the accumulated phase/timing error that gives rise to path delay profile drift. In another embodiment, a timing circuit measures the instantaneous path delay profile drift incurred with each frequency correction, and integrates the instantaneous drift measurements over time to yield a path delay profile drift. The drift (or its rate of change) is then used to adjust a frequency correction value so as to minimize the drift.
摘要翻译：由接收机施加的自动频率校正值被改变以最小化路径延迟分布的长期漂移。在一个实施例中，累积了由恒定频率校正引起的相位或定时误差，并且响应于累积的相位/定时误差，将估计频率校正值选择性地量化为实际频率校正值。选择高于或低于估计的量化值以最小化引起路径延迟分布漂移的累积相位/定时误差。在另一个实施例中，定时电路测量每个频率校正引起的瞬时路径延迟分布漂移，并且随着时间的推移积分瞬时漂移测量值，以产生路径延迟分布漂移。然后使用漂移（或其变化率）来调整频率校正值，以便使漂移最小化。

33. 发明授权

US07437175B2 Synchronization detection methods and apparatus 有权
标题翻译：同步检测方法和装置
公开(公告)号：US07437175B2
公开(公告)日：2008-10-14
申请号：US10839926
申请日：2004-05-06
申请人： Bengt Lindoff , Bo Bernhardsson
发明人： Bengt Lindoff , Bo Bernhardsson
IPC分类号： H04B7/00 , H04Q7/20
CPC分类号： H04W52/40 , H04W52/54
摘要： Methods and apparatus for determining when uplink synchronization has been achieved when entering or adding a link in soft handover to a new node in a communication system. Transmit power control (TPC) commands from the new link are not included in a TPC command combination until an uplink synchronization detector determines that synchronization has been achieved. Since in many communication systems, a pattern of TPC commands is transmitted on the new downlink as long as the new node's uplink is not synchronized, the uplink synchronization detector can determine whether synchronization has been achieved by determining whether the TPC command pattern is present in the new downlink. In this way, the UL synchronization detector reduces the occurrence and magnitude of unwanted peaks and dips in uplink transmitted power.
摘要翻译：当在通信系统中向新的节点进行软切换中输入或添加链路时，确定何时上行链路同步已经实现的方法和装置。直到上行链路同步检测器确定已经实现同步，才能将来自新链路的发送功率控制（TPC）命令包含在TPC命令组合中。由于在许多通信系统中，只要新节点的上行链路不同步，则在新的下行链路上传输TPC命令的模式，上行链路同步检测器可以通过确定是否存在TPC命令模式来确定是否已经实现了同步新下行链路。以这种方式，UL同步检测器减少了上行链路发送功率中出现的不必要的峰值和幅度。

34. 发明申请

US20080232326A1 Method and Apparatus for Reducing Interference in Wireless Communication Networks by Enabling More Opportune Handover 审中-公开
标题翻译：通过实现更多机会切换来减少无线通信网络干扰的方法和装置
公开(公告)号：US20080232326A1
公开(公告)日：2008-09-25
申请号：US12049870
申请日：2008-03-17
申请人： Bengt Lindoff , Bo Bernhardsson , Arne Simonsson
发明人： Bengt Lindoff , Bo Bernhardsson , Arne Simonsson
IPC分类号： H04Q7/00
CPC分类号： H04W36/30 , H04W36/20
摘要： According to the teachings presented herein, wireless communication network interference is reduced by sending handover measurement information from mobile stations in conjunction with sending uplink scheduling requests, and by correspondingly making combined handover and uplink resource scheduling decisions. In this context, the combined decision considers both the handover measurement information and the uplink scheduling request, and determines whether a serving cell grants or denies the request and whether handover from the serving cell to a neighboring cell is or is not initiated for the mobile station. The combined determination provides for timely handover of the mobile station, such as where the mobile station is operating near a cell edge and issues an uplink scheduling request to its currently serving cell.
摘要翻译：根据本文提出的教导，通过从移动台发送切换测量信息并结合发送上行调度请求，并相应地进行组合切换和上行链路资源调度决定，减少了无线通信网络的干扰。在这种情况下，组合决策同时考虑切换测量信息和上行链路调度请求，并且确定服务小区是否授予或拒绝该请求，以及从移动台是否启动从服务小区到相邻小区的切换。组合确定提供移动站的及时切换，例如移动站在小区边缘附近操作的位置，并向其当前服务小区发布上行链路调度请求。

35. 发明申请

US20050105647A1 Channel estimation by adaptive interpolation 有权
标题翻译：通过自适应插值的信道估计
公开(公告)号：US20050105647A1
公开(公告)日：2005-05-19
申请号：US10920928
申请日：2004-08-18
申请人： Leif Wilhelmsson , Bo Bernhardsson , Lennart Andersson
发明人： Leif Wilhelmsson , Bo Bernhardsson , Lennart Andersson
IPC分类号： H04L25/02 , H04L27/26 , H03K9/00
CPC分类号： H04L25/0234 , H04L5/0048 , H04L25/022 , H04L25/0222 , H04L27/2647
摘要： Methods and apparatus that achieve good channel estimation without using unnecessarily complex interpolation filters are described. Adaptive interpolation filtering of a signal in a receiver includes determining at least one correlation function parameter of the channel and determining a filter configuration based on the correlation function parameter. Interpolation filtering is then performed on the signal using the determined filter configuration. The interpolation may be performed in time, where a Doppler frequency shift can serve as the correlation function parameter, or in frequency, where a root mean square or maximum delay spread can serve as the correlation function parameter, or both. A worst case signal-to-noise ratio may be used in determining the filter configuration, or, optionally, the signal-to-noise ratio can determined in real time. The filter configuration can be determined in real time or selected from one of a plurality of predetermined configurations having different complexities.
摘要翻译：描述了不使用不必要的内插滤波器实现良好信道估计的方法和装置。接收机中的信号的自适应插值滤波包括确定信道的至少一个相关函数参数，并且基于相关函数参数来确定滤波器配置。然后使用确定的滤波器配置对信号执行插值滤波。可以在时间上执行插值，其中多普勒频移可以用作相关函数参数，或频率，其中均方根或最大延迟扩展可以用作相关函数参数，或两者。可以使用最坏情况的信噪比来确定滤波器配置，或者可选地，可以实时地确定信噪比。滤波器配置可以实时确定或者从具有不同复杂度的多个预定配置之一中选择。

36. 发明申请

US20050075122A1 Wireless transceivers, methods, and computer program products for restricting transmission power based on signal-to-interference ratios 有权
标题翻译：无线收发器，方法和计算机程序产品，用于根据信号干扰比来限制发射功率
公开(公告)号：US20050075122A1
公开(公告)日：2005-04-07
申请号：US10612373
申请日：2003-07-02
申请人： Bengt Lindoff , Bo Bernhardsson , Torgny Palenius
发明人： Bengt Lindoff , Bo Bernhardsson , Torgny Palenius
IPC分类号： H04B7/005 , H04W52/22 , H04W52/28 , H04W52/36 , H04Q7/20
CPC分类号： H04W52/367 , H04W52/228 , H04W52/283 , H04W52/288
摘要： A method for controlling transmission power from a wireless transceiver. Signal to interference ratios (SIRs) are estimated for a signal that is received from another wireless device. An out-of-sync condition between the wireless transceiver and the other wireless device is identified based on the SIRs. Change of the transmission power from the wireless transceiver is restricted based on the SIRs and when an out-of-sync condition has not been identified.
摘要翻译：一种用于控制来自无线收发器的发射功率的方法。对于从另一无线设备接收到的信号估计信号与干扰比（SIR）。基于SIR识别无线收发器与另一无线设备之间的不同步状态。来自无线收发器的发射功率的改变基于SIR被限制并且当不同步条件尚未被识别时被限制。

37. 发明授权

US08744026B2 Method and apparatus for interference suppression using a reduced-complexity joint detection 有权
标题翻译：使用降低复杂度的联合检测的干扰抑制方法和装置
公开(公告)号：US08744026B2
公开(公告)日：2014-06-03
申请号：US12903836
申请日：2010-10-13
申请人： Anders Rosenqvist , Niklas Andgart , Bo Bernhardsson
发明人： Anders Rosenqvist , Niklas Andgart , Bo Bernhardsson
IPC分类号： H04B1/10
CPC分类号： H04L25/023 , H04L25/03305 , H04L2025/03401 , H04L2025/03414 , H04L2025/0342 , H04L2025/03426
摘要： A method of detecting a desired signal within a composite signal provides for suppression of interfering signal(s). The method, implemented in a wireless communication apparatus, for example, includes receiving the composite signal and obtaining sample values therefrom. At least some of the sample values include desired and interfering signal components. The method further includes generating an interfering signal channel estimate by: forming sample pairs for some or all of the sample values; identifying sample pairs of interest as those sample pairs in which the interfering signal component is the same; and calculating the interfering signal channel estimate as an average value determined from one or more of the sample pairs of interest. The method further includes detecting desired signal symbols from the composite signal in a joint detection process that functionally depends on the interfering signal channel estimate.
摘要翻译：在复合信号内检测期望信号的方法提供了抑制干扰信号。例如，在无线通信装置中实现的方法包括接收复合信号并从中获取样本值。至少一些样本值包括期望的和干扰的信号分量。该方法还包括：通过以下方式产生干扰信号信道估计：为样本值的某些或全部形成样本对; 将感兴趣的样本对识别为其中干扰信号分量相同的样本对; 以及将干扰信号信道估计值计算为从感兴趣的一个或多个样本对确定的平均值。该方法还包括在功能上取决于干扰信号信道估计的联合检测过程中从复合信号中检测所需信号符号。

38. 发明授权

US08472538B2 Method and apparatus for delay spread estimation 有权
标题翻译：用于延迟扩展估计的方法和装置
公开(公告)号：US08472538B2
公开(公告)日：2013-06-25
申请号：US12746604
申请日：2008-12-08
申请人： Leif Wilhelmsson , Bo Bernhardsson , Lars Björkman
发明人： Leif Wilhelmsson , Bo Bernhardsson , Lars Björkman
IPC分类号： H04L27/28
CPC分类号： H04L25/022 , H04L5/0048 , H04L25/0232 , H04L27/2647 , H04L27/2662
摘要： Methods for calculating a delay spread estimate in an OFDM-receiver are described, along with computer program products and electronic apparatuses for performing the methods. The methods comprise determining a position of an FFT-window in relation to one or more OFDM-symbols of a received OFDM-signal and using the determined position to obtain a first OFDM-symbol from the received OFDM-signal. An FFT is applied to the first OFDM-symbol to produce an FFT-output signal. A frequency dependent phase rotation component of the FFT-output signal is determined and removed from the FFT-output signal. A number of zero-crossings of at least one of a real component and an imaginary component of a transfer function of a channel, over which the received OFDM-signal has been transmitted, derived from the FFT-output signal where the frequency dependent phase rotation component has been removed is determined, and a delay spread estimate is calculated based on the determined number of zero-crossings.
摘要翻译：与用于执行方法的计算机程序产品和电子设备一起描述了用于计算OFDM接收机中的延迟扩展估计的方法。所述方法包括相对于所接收的OFDM信号的一个或多个OFDM符号确定FFT窗口的位置，并且使用所确定的位置从接收的OFDM信号中获得第一OFDM符号。对第一OFDM符号应用FFT以产生FFT输出信号。 FFT输出信号的频率相关相位旋转分量被确定并从FFT输出信号中去除。频率依赖相位旋转的FFT输出信号导出传输函数的传输函数的实数分量和虚分量中的至少一个的多个零交叉已经去除了分量，并且基于确定的过零点数来计算延迟扩展估计。

39. 发明申请

US20110176466A1 Micro-Sleep Techniques in LTE Receivers 审中-公开
标题翻译： LTE接收机中的微睡眠技术
公开(公告)号：US20110176466A1
公开(公告)日：2011-07-21
申请号：US12719359
申请日：2010-03-08
申请人： Bengt Lindoff , Bo Bernhardsson
发明人： Bengt Lindoff , Bo Bernhardsson
IPC分类号： H04W52/02 , H04L27/00
CPC分类号： H04W52/0238 , H04L5/0007 , H04L25/0224 , H04W52/0225 , Y02D70/1262 , Y02D70/146 , Y02D70/23 , Y02D70/24
摘要： According to various embodiments of the methods and apparatus disclosed herein, a “micro-sleep” functionality is selectively enabled in a wireless receiver, based on an evaluation of channel conditions, traffic characteristics, or both. When micro-sleep operation is appropriate, such as when an estimated signal-to-interference ratio is higher than a pre-determined threshold, one or more receiver circuits in a mobile station can be de-activated for a portion of a sub-frame (or other transmission-time interval) that generally carries traffic data but is not currently carrying data targeted to the mobile station. In this manner, significant power savings can be achieved, independently of or in addition to any power savings provided by existing discontinuous-receive (DRX) technologies.
摘要翻译：根据本文公开的方法和装置的各种实施例，基于对信道条件，业务特性或两者的评估，在无线接收机中选择性地启用“微睡眠”功能。当微睡眠操作是适当的时，例如当估计的信号干扰比高于预定阈值时，移动台中的一个或多个接收器电路可以对于子帧的一部分被去激活（或其他传输时间间隔），其通常携带业务数据，但是当前不携带针对移动站的数据。以这种方式，可以独立于现有不连续接收（DRX）技术提供的任何功率节省或除了由现有不连续接收（DRX）技术提供的任何功率节省）之外可实现显着的功率节省。

40. 发明授权

US07684312B2 Method and apparatus for fast FFT processing of paging information 有权
标题翻译：寻呼信息快速FFT处理的方法和装置
公开(公告)号：US07684312B2
公开(公告)日：2010-03-23
申请号：US11276384
申请日：2006-02-27
申请人： Bengt Lindoff , Thomas Olsson , Bo Bernhardsson
发明人： Bengt Lindoff , Thomas Olsson , Bo Bernhardsson
IPC分类号： H04J11/00
CPC分类号： H04L27/2647 , H04W28/14 , H04W68/00
摘要： A method and corresponding apparatus for fast FFT processing of paging information includes receiving an analog signal that is converted to a first digital signal and digitally filtered through a first filter having a first bandwidth (BWA) to obtain a second digital signal. The second digital signal is stored in a buffer. The first digital signal is further digitally filtered through a second filter having a second bandwidth (BWB) to obtain a third digital signal. An FFTM processing of the third digital signal is initiated and simultaneously, an FFTN processing of the second digital signal is initiated. The FFTM processed third digital signal is then decoded and, based on the decoding of the FFTM processed third digital signal, a determination is made of whether to complete the FFTN processing of the second digital signal from the buffer.
摘要翻译：一种用于寻呼信息的快速FFT处理的方法和相应装置，包括：接收转换为第一数字信号的模拟信号，并通过具有第一带宽（BWA）的第一滤波器进行数字滤波，以获得第二数字信号。第二数字信号存储在缓冲器中。第一数字信号通过具有第二带宽（BWB）的第二滤波器进一步数字滤波，以获得第三数字信号。启动第三数字信号的FFTM处理并同时启动第二数字信号的FFTN处理。然后对FFTM处理的第三数字信号进行解码，并且基于FFTM处理的第三数字信号的解码，确定是否从缓冲器完成第二数字信号的FFTN处理。

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