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1. 发明申请

US20130114435A1 Almost-Blank Subframe Configuration Detection in Heterogeneous Networks 有权
标题翻译：在异构网络中几乎空白的子帧配置检测
公开(公告)号：US20130114435A1
公开(公告)日：2013-05-09
申请号：US13384440
申请日：2011-11-09
申请人： Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
发明人： Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
IPC分类号： H04W24/00
CPC分类号： H04W48/16 , H04B7/022 , H04B7/04 , H04B7/0413 , H04B17/318 , H04J11/005 , H04L5/0023 , H04L5/0035 , H04L5/005 , H04L25/022 , H04L25/0224 , H04L27/2602 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W52/00 , H04W72/00 , H04W84/045
摘要： A method for detecting an Almost-Blank Subframe (ABS) configuration for an interfering macro cell of a heterogeneous network is implemented in a wireless terminal. For one or more resource blocks in a received signal, a first power metric is calculated as a function of channel response estimates determined for predicted cell-specific (or common) reference signal (CRS) resource element locations in a plurality of symbols. For the one or more resource blocks in the received signal, a second power metric is calculated as a function of channel response estimates determined for the predicted CRS resource element locations in a single one of the plurality of symbols. A difference between the first and second power metrics is compared to a threshold, and responsive to the comparison a determination is made as to whether the macro cell is operating in a Multicast and Broadcast Single Frequency Network (MBSFN) mode or a non-MBSFN mode.
摘要翻译：在无线终端中实现用于检测异构网络的干扰宏小区的几乎空白子帧（ABS）配置的方法。对于接收信号中的一个或多个资源块，根据为多个符号中的预测小区特定（或公共）参考信号（CRS）资源元素位置确定的信道响应估计值来计算第一功率量度。对于接收信号中的一个或多个资源块，计算第二功率量度作为对于多个符号中的单个符号中的预测CRS资源元素位置确定的信道响应估计的函数。将第一和第二功率度量之间的差异与阈值进行比较，并且响应于比较，确定宏小区是否以组播和广播单频网络（MBSFN）模式或非MBSFN模式操作。

2. 发明授权

US09179396B2 Almost-blank subframe configuration detection in heterogeneous networks 有权
标题翻译：异构网络中几乎空白的子帧配置检测
公开(公告)号：US09179396B2
公开(公告)日：2015-11-03
申请号：US13384440
申请日：2011-11-09
申请人： Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
发明人： Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
IPC分类号： H04W48/16 , H04L5/00 , H04L27/26 , H04W84/04 , H04J11/00 , H04W24/08 , H04B7/04 , H04W52/00 , H04W72/00
CPC分类号： H04W48/16 , H04B7/022 , H04B7/04 , H04B7/0413 , H04B17/318 , H04J11/005 , H04L5/0023 , H04L5/0035 , H04L5/005 , H04L25/022 , H04L25/0224 , H04L27/2602 , H04L27/2656 , H04L27/2666 , H04W24/08 , H04W52/00 , H04W72/00 , H04W84/045
摘要： A method for detecting an Almost-Blank Subframe (ABS) configuration for an interfering macro cell of a heterogeneous network is implemented in a wireless terminal. For one or more resource blocks in a received signal, a first power metric is calculated as a function of channel response estimates determined for predicted cell-specific (or common) reference signal (CRS) resource element locations in a plurality of symbols. For the one or more resource blocks in the received signal, a second power metric is calculated as a function of channel response estimates determined for the predicted CRS resource element locations in a single one of the plurality of symbols. A difference between the first and second power metrics is compared to a threshold, and responsive to the comparison a determination is made as to whether the macro cell is operating in a Multicast and Broadcast Single Frequency Network (MBSFN) mode or a non-MBSFN mode.
摘要翻译：在无线终端中实现用于检测异构网络的干扰宏小区的几乎空白子帧（ABS）配置的方法。对于接收信号中的一个或多个资源块，根据为多个符号中的预测小区特定（或公共）参考信号（CRS）资源元素位置确定的信道响应估计值来计算第一功率量度。对于接收信号中的一个或多个资源块，计算第二功率量度作为对于多个符号中的单个符号中的预测CRS资源元素位置确定的信道响应估计的函数。将第一和第二功率度量之间的差异与阈值进行比较，并且响应于比较，确定宏小区是否以组播和广播单频网络（MBSFN）模式或非MBSFN模式操作。

3. 发明授权

US08477860B2 OFDM signal reception in the presence of interference 有权
标题翻译：在存在干扰的情况下进行OFDM信号接收
公开(公告)号：US08477860B2
公开(公告)日：2013-07-02
申请号：US12869816
申请日：2010-08-27
申请人： Matthias Kamuf , Bengt Lindoff , Sven Mattisson , Fredrik Nordström
发明人： Matthias Kamuf , Bengt Lindoff , Sven Mattisson , Fredrik Nordström
IPC分类号： H04L27/01
CPC分类号： H04L27/2647 , H04L25/03292 , H04L25/03318 , H04L2025/03414
摘要： Decoding a received Orthogonal Frequency Division Multiplex (OFDM) signal that occupies a first set of subcarriers in a radio frequency spectrum includes ascertaining an interference model that represents interference occurring in the first set of subcarriers caused by a transmitted OFDM signal that occupies a second set of subcarriers in the radio frequency spectrum. A set of scaled soft values is produced that represents information conveyed by the received OFDM signal over the first set of subcarriers, wherein each scaled soft value in the set of scaled soft values corresponds to a respective one of the subcarriers in the first set of subcarriers, and wherein a scaling amount applied to each of the scaled soft values is based on a corresponding level of interference in said respective one of the subcarriers as indicated by the interference model. A decoding process is performed that generates detected data from the scaled soft values.
摘要翻译：解码在无线电频谱中占用第一组子载波的接收的正交频分多路复用（OFDM）信号包括确定干扰模型，其表示由发送的OFDM信号引起的第一组子载波中所发生的干扰，所述OFDM信号占用第二组无线电频谱中的子载波。产生一组缩放的软值，其表示在第一组子载波上由接收的OFDM信号传送的信息，其中该缩放的软值集合中的每个缩放的软值对应于第一组子载波中的相应的一个子载波，并且其中应用于每个所述缩放的软值的缩放量基于由所述干扰模型指示的所述相应一个子载波中的相应的干扰电平。执行从缩放的软值生成检测数据的解码处理。

4. 发明授权

US08130849B2 Maximum A posteriori interference estimation in a wireless communication system 有权
标题翻译：无线通信系统中的最大后验干扰估计
公开(公告)号：US08130849B2
公开(公告)日：2012-03-06
申请号：US12211470
申请日：2008-09-16
申请人： Bo Lincoln , Matthias Kamuf , Fredrik Nordström
发明人： Bo Lincoln , Matthias Kamuf , Fredrik Nordström
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L1/20 , H04L25/0204 , H04L25/0228 , H04L25/03006 , H04L25/03821 , H04L2025/03414
摘要： Methods and apparatus are disclosed for estimating inter-cell interference levels for resource elements of a received Orthogonal Frequency-Division Multiplexing (OFDM) signal. In an exemplary method in a wireless receiver, a reference symbol interference levels is measured for each of a plurality of reference symbols in a received OFDM signal, and interference scaling factors are mapped to each of a plurality of resource elements of the received OFDM signal. Each interference scaling factor reflects the probability that the corresponding resource element or group of resource elements is subject to interference from an interfering OFDM signal. Interference levels for each of the resource elements are then estimated as a function of the measured reference symbol interference levels and the interference scaling factors.
摘要翻译：公开了用于估计接收到的正交频分复用（OFDM）信号的资源元件的小区间干扰电平的方法和装置。在无线接收机中的示例性方法中，对接收的OFDM信号中的多个参考符号中的每一个测量参考符号干扰电平，并且将干扰缩放因子映射到所接收的OFDM信号的多个资源元素中的每一个。每个干扰比例因子反映相应的资源元素或资源元素组受干扰OFDM信号的干扰的概率。然后将每个资源元素的干扰电平估计为测量的参考符号干扰电平和干扰缩放因子的函数。

5. 发明授权

US08687745B2 Method and apparatus for blind decoding 有权
标题翻译：用于盲解码的方法和装置
公开(公告)号：US08687745B2
公开(公告)日：2014-04-01
申请号：US12134243
申请日：2008-06-06
申请人： Bengt Lindoff , Matthias Kamuf , Fredrik Nordström
发明人： Bengt Lindoff , Matthias Kamuf , Fredrik Nordström
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L1/0091 , H04L1/0038 , H04L1/0046
摘要： According to the teachings presented herein, a method and apparatus provide a reduced search space for blindly decoding a message included in a signal received at a communication receiver, where the message has an unknown format. Improving blind detection efficiency in this manner offers numerous advantages, including but not limited to lower power consumption through reduced processing overhead, and lower power consumption through expanded sleep opportunities. As a non-limiting example, the communication receiver comprises a mobile station configured for operation according to Long Term Evolution (LTE) standards, as promulgated by the 3GPP for E-UTRA systems, where the mobile station is configured to reduce a search space of DCI message decoding by determining message format likelihoods and blindly decoding a received DCI message based on the message format likelihoods.
摘要翻译：根据本文呈现的教导，一种方法和装置提供减少的搜索空间，用于盲目地解码包括在通信接收器处接收的信号中的消息，其中消息具有未知格式。以这种方式提高盲目检测效率提供了许多优点，包括但不限于通过减少处理开销降低功耗，并通过扩展的睡眠机会降低功耗。作为非限制性示例，通信接收机包括被配置用于根据长期演进（LTE）标准进行操作的移动台，如3GPP针对E-UTRA系统所公布的，其中移动台被配置为减少搜索空间通过确定消息格式似然性并基于消息格式可能性对接收的DCI消息进行盲解码来进行DCI消息解码。

6. 发明授权

US08331254B2 Interference-aware resource assignment in communication systems 有权
标题翻译：通信系统中的干扰感知资源分配
公开(公告)号：US08331254B2
公开(公告)日：2012-12-11
申请号：US12642027
申请日：2009-12-18
申请人： Matthias Kamuf , Christian Bergljung , Fredrik Nordström
发明人： Matthias Kamuf , Christian Bergljung , Fredrik Nordström
IPC分类号： H04J1/16 , H04J1/00 , H04J3/16
CPC分类号： H04W72/0453 , H04W72/082
摘要： Methods and apparatus in a frequency division duplex, orthogonal frequency division multiplex communication system assign resources, including the number, frequency position, and coding, in a subframe of a downlink to a user equipment (UE) based on parameters that influence the robustness against UE self-induced interference when the UE is scheduled for uplink transmission in that subframe.
摘要翻译：频分双工中的方法和装置，正交频分多路复用通信系统基于影响对UE的鲁棒性的参数，将下行链路的子帧中的数量，频率位置和编码分配给用户设备（UE）当UE被调度用于该子帧中的上行链路传输时，自感应干扰。

7. 发明申请

US20120051464A1 OFDM signal reception in the presence of interference 有权
标题翻译：在存在干扰的情况下进行OFDM信号接收
公开(公告)号：US20120051464A1
公开(公告)日：2012-03-01
申请号：US12869816
申请日：2010-08-27
申请人： Matthias Kamuf , Bengt Lindoff , Sven Mattisson , Fredrik Nordström
发明人： Matthias Kamuf , Bengt Lindoff , Sven Mattisson , Fredrik Nordström
IPC分类号： H04L27/06 , H04L25/08
CPC分类号： H04L27/2647 , H04L25/03292 , H04L25/03318 , H04L2025/03414
摘要： Decoding a received Orthogonal Frequency Division Multiplex (OFDM) signal that occupies a first set of subcarriers in a radio frequency spectrum includes ascertaining an interference model that represents interference occurring in the first set of subcarriers caused by a transmitted OFDM signal that occupies a second set of subcarriers in the radio frequency spectrum. A set of scaled soft values is produced that represents information conveyed by the received OFDM signal over the first set of subcarriers, wherein each scaled soft value in the set of scaled soft values corresponds to a respective one of the subcarriers in the first set of subcarriers, and wherein a scaling amount applied to each of the scaled soft values is based on a corresponding level of interference in said respective one of the subcarriers as indicated by the interference model. A decoding process is performed that generates detected data from the scaled soft values.
摘要翻译：解码在无线电频谱中占用第一组子载波的接收的正交频分多路复用（OFDM）信号包括确定干扰模型，其表示由发送的OFDM信号引起的第一组子载波中所发生的干扰，所述OFDM信号占用第二组无线电频谱中的子载波。产生一组缩放的软值，其表示在第一组子载波上由接收的OFDM信号传送的信息，其中该缩放的软值集合中的每个缩放的软值对应于第一组子载波中的相应的一个子载波，并且其中应用于每个所述缩放的软值的缩放量基于由所述干扰模型指示的所述相应一个子载波中的相应的干扰电平。执行从缩放的软值生成检测数据的解码处理。

8. 发明申请

US20110026415A1 Interference-Aware Resource Assignment in Communication Systems 有权
标题翻译：通信系统中的干扰感知资源分配
公开(公告)号：US20110026415A1
公开(公告)日：2011-02-03
申请号：US12642027
申请日：2009-12-18
申请人： Matthias Kamuf , Christian Bergljung , Fredrik Nordström
发明人： Matthias Kamuf , Christian Bergljung , Fredrik Nordström
IPC分类号： H04J1/00 , H04L12/26 , H04W72/04
CPC分类号： H04W72/0453 , H04W72/082
摘要： Methods and apparatus in a frequency division duplex, orthogonal frequency division multiplex communication system assign resources, including the number, frequency position, and coding, in a subframe of a downlink to a user equipment (UE) based on parameters that influence the robustness against UE self-induced interference when the UE is scheduled for uplink transmission in that subframe.
摘要翻译：频分双工中的方法和装置，正交频分多路复用通信系统基于影响对UE的鲁棒性的参数，将下行链路的子帧中的数量，频率位置和编码分配给用户设备（UE）当UE被调度用于该子帧中的上行链路传输时，自感应干扰。

9. 发明授权

US08744020B2 Frequency offset estimation 有权
标题翻译：频偏估计
公开(公告)号：US08744020B2
公开(公告)日：2014-06-03
申请号：US13127044
申请日：2009-10-30
申请人： Niklas Andgart , Fredrik Nordström
发明人： Niklas Andgart , Fredrik Nordström
IPC分类号： H04L27/06
CPC分类号： H04L27/2659 , H04L5/0007 , H04L25/023
摘要： A frequency offset of a received signal comprising a number of subsequently received data symbols is estimated. A first estimate is determined from a calculated change in phase of the received signal between two received symbols having a first time distance between them. At least one further estimate is determined from a calculated change in phase of the received signal between two received symbols having a different time distance. A frequency periodicity is determined for each estimate from the distance between the two received symbols from which the estimate was determined. A set of integer values is determined for each estimate so that frequency values calculated for each estimate as the frequency periodicity multiplied by the integer value added to the estimate are at least approximately equal to each other, and a corrected estimate of the frequency offset is determined from the integer values.
摘要翻译：估计包括多个随后接收的数据符号的接收信号的频率偏移。从在它们之间具有第一时间距离的两个接收符号之间的接收信号的计算的相位变化确定第一估计。从具有不同时间距离的两个接收符号之间的接收信号的计算的相位变化确定至少一个另外的估计。根据确定估计的两个接收符号之间的距离为每个估计确定频率周期。为每个估计确定一组整数值，使得为每个估计计算的频率值作为频率周期乘以加到估计的整数值至少近似相等，并且确定频率偏移的校正估计从整数值。

10. 发明申请

US20120219094A1 Operation of User Equipment When Control and Data Information are Supplied by Different Radio Units 有权
标题翻译：控制和数据信息由不同的无线电单元提供时，用户设备的操作
公开(公告)号：US20120219094A1
公开(公告)日：2012-08-30
申请号：US13033722
申请日：2011-02-24
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04L27/00 , H04B1/06
CPC分类号： H04L27/2657 , H04L5/005 , H04L5/0051 , H04L25/0204 , H04L25/0224 , H04L27/2662 , H04L27/2672 , H04L27/2675 , H04L27/2695 , H04W56/001 , H04W56/0035
摘要： A receiver operates in a mobile communication system that comprises first node and second nodes, the first and second nodes transmitting common control signals and dedicated data signals, respectively. The receiver determines a first timing rotation and/or a first frequency rotation of the common control signals and a second timing rotation and/or a second frequency rotation of the dedicated data signals. The receiver determines a first and/or second difference, wherein the first difference is a difference between the first timing rotation of the common control signals and the second timing rotation of the dedicated data signals and the second difference is a difference between the first frequency rotation of the common control signals and the second frequency rotation of the dedicated data signals. An adapted timing of dedicated data signals is produced based on the first and/or second differences, and the adapted timing is used to receive dedicated data signals.
摘要翻译：接收机在包括第一节点和第二节点的移动通信系统中操作，第一和第二节点分别发送公共控制信号和专用数据信号。接收机确定公共控制信号的第一定时旋转和/或第一频率旋转以及专用数据信号的第二定时旋转和/或第二频率旋转。接收机确定第一和/或第二差异，其中第一差是公共控制信号的第一定时旋转和专用数据信号的第二定时旋转之间的差，第二差是第一频率旋转的公共控制信号和专用数据信号的第二频率旋转。基于第一和/或第二差产生专用数据信号的适应定时，并且使用适配的定时来接收专用数据信号。

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