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1.发明授权公开(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
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。
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公开(公告)号：US08861572B2
公开(公告)日：2014-10-14
申请号：US13145789
申请日：2010-01-20
CPC分类号： H04L25/03006 , H04L25/0216 , H04L2025/03426
摘要： A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.
摘要翻译： 公开了适用于具有多个接收机天线的通信设备中的延迟扩展补偿方法。 该方法包括：经由相应的天线接收多个信号，其中每个信号包括对应于发射信号的信号分量，并且其中每个接收信号经历具有相应延迟扩展的相应信道脉冲响应; 确定每个信道脉冲响应的估计; 基于信道脉冲响应的估计来计算后编码特性; 以及使用所述后编码特性对所述多个接收信号进行后编码，以产生至少第一延迟扩展补偿信号。 还公开了相应的计算机程序产品，处理布置和通信设备。
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公开(公告)号：US08416873B2
公开(公告)日：2013-04-09
申请号：US12400234
申请日：2009-03-09
申请人： Bo Lincoln , Fredrik Nordström
发明人： Bo Lincoln , Fredrik Nordström
IPC分类号： H04B7/02
CPC分类号： H04B7/0697 , H04B7/0452 , H04L2025/03426
摘要： A method and apparatus is provided for demodulating a desired data stream in a MU-MIMO communication system where only the precoder for the desired data stream is known a priori. The receiving terminal according to various embodiments of the present invention estimates the precoder for one or more interfering data streams. The receiving terminal can then use the known precoder for the desired data stream and the estimated precoders for the interfering data streams to perform MMSE demodulation.
摘要翻译： 提供了一种在MU-MIMO通信系统中解调所需数据流的方法和装置，其中只有预先知道所需数据流的预编码器是先验的。 根据本发明的各种实施例的接收终端估计一个或多个干扰数据流的预编码器。 然后，接收终端可以使用已知的预编码器用于期望的数据流，以及用于干扰数据流的估计的预编码器执行MMSE解调。
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4.发明申请Detecting a Transmitted OFDM Signal in a Receiver Having at Least Two Receiver Branches 有权在具有至少两个接收器分支的接收机中检测传输的OFDM信号公开(公告)号：US20130028354A1
公开(公告)日：2013-01-31
申请号：US13578123
申请日：2011-02-03
申请人： Bengt Lindoff , Bo Lincoln , Fredrik Nordström
发明人： Bengt Lindoff , Bo Lincoln , Fredrik Nordström
IPC分类号： H04L27/28
CPC分类号： H04L27/2647 , H04B7/0845 , H04L25/0202 , H04L27/2666
摘要： A transmitted OFDM signal is detected in a receiver of a wireless communication system. The receiver has at least two receiver branches, each comprising an antenna, a front end receiver, a Discrete Fourier Transform unit, and a channel estimator. The receiver further comprises a detector for detecting received data symbols. The method comprises the steps of determining a system bandwidth associated with the transmitted signal; comparing the determined system bandwidth with a predetermined value; determining, if the system bandwidth is lower than the predetermined value, channel estimates separately for each branch, and detecting received data symbols from the received signals and corresponding channel estimates; and calculating, if the system bandwidth is higher than the predetermined value, a weighted sum of signals from each branch, determining a combined channel estimate, and detecting received data symbols from the weighted sum and the combined channel estimate.
摘要翻译： 在无线通信系统的接收机中检测到发送的OFDM信号。 接收器具有至少两个接收器分支，每个接收器分支包括天线，前端接收器，离散傅立叶变换单元和信道估计器。 接收机还包括用于检测接收到的数据符号的检测器。 该方法包括以下步骤：确定与发射信号相关联的系统带宽; 将所确定的系统带宽与预定值进行比较; 确定如果系统带宽低于预定值，则针对每个分支分别进行信道估计，并且从接收到的信号和对应的信道估计中检测接收到的数据符号; 并且如果系统带宽高于预定值，则计算来自每个分支的信号的加权和，确定组合的信道估计，以及从加权和和组合的信道估计中检测接收到的数据符号。
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公开(公告)号：US20120027048A1
公开(公告)日：2012-02-02
申请号：US13145789
申请日：2010-01-20
IPC分类号： H04B1/707
CPC分类号： H04L25/03006 , H04L25/0216 , H04L2025/03426
摘要： A method of delay spread compensation, suitable for use in a communication device a having plurality of receiver antennas, is disclosed. The method comprises receiving a plurality of signals, each via a respective antenna, wherein each signal comprises a signal component corresponding to a transmitted signal, and wherein each received signal experiences a respective channel impulse response having a corresponding delay spread; determining estimates of each of the channel impulse responses; calculating post-coding characteristics based on the estimates of the channel impulse responses; and post-coding the plurality of received signals using the post-coding characteristics to produce at least a first delay spread compensated signal. Corresponding computer program product, processing arrangement and communication device are also disclosed.
摘要翻译： 公开了适用于具有多个接收机天线的通信设备中的延迟扩展补偿方法。 该方法包括：经由相应的天线接收多个信号，其中每个信号包括对应于发射信号的信号分量，并且其中每个接收信号经历具有相应延迟扩展的相应信道脉冲响应; 确定每个信道脉冲响应的估计; 基于信道脉冲响应的估计来计算后编码特性; 以及使用所述后编码特性对所述多个接收信号进行后编码，以产生至少第一延迟扩展补偿信号。 还公开了相应的计算机程序产品，处理布置和通信设备。
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6.发明授权Detecting a transmitted OFDM signal in a receiver having at least two receiver branches 有权在具有至少两个接收器分支的接收机中检测发送的OFDM信号公开(公告)号：US08953698B2
公开(公告)日：2015-02-10
申请号：US13578123
申请日：2011-02-03
申请人： Bengt Lindoff , Bo Lincoln , Fredrik Nordström
发明人： Bengt Lindoff , Bo Lincoln , Fredrik Nordström
CPC分类号： H04L27/2647 , H04B7/0845 , H04L25/0202 , H04L27/2666
摘要： A transmitted OFDM signal is detected in a receiver of a wireless communication system. The receiver has at least two receiver branches, each comprising an antenna, a front end receiver, a Discrete Fourier Transform unit, and a channel estimator. The receiver further comprises a detector for detecting received data symbols. The method comprises the steps of determining a system bandwidth associated with the transmitted signal; comparing the determined system bandwidth with a predetermined value; determining, if the system bandwidth is lower than the predetermined value, channel estimates separately for each branch, and detecting received data symbols from the received signals and corresponding channel estimates; and calculating, if the system bandwidth is higher than the predetermined value, a weighted sum of signals from each branch, determining a combined channel estimate, and detecting received data symbols from the weighted sum and the combined channel estimate.
摘要翻译： 在无线通信系统的接收机中检测到发送的OFDM信号。 接收器具有至少两个接收器分支，每个接收器分支包括天线，前端接收器，离散傅立叶变换单元和信道估计器。 接收机还包括用于检测接收到的数据符号的检测器。 该方法包括以下步骤：确定与发射信号相关联的系统带宽; 将所确定的系统带宽与预定值进行比较; 确定如果系统带宽低于预定值，则针对每个分支分别进行信道估计，并且从接收到的信号和对应的信道估计中检测接收到的数据符号; 以及如果系统带宽高于预定值，则计算来自每个分支的信号的加权和，确定组合信道估计，以及从加权和和组合信道估计检测接收到的数据符号。
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公开(公告)号：US20120300699A1
公开(公告)日：2012-11-29
申请号：US13382560
申请日：2010-07-05
申请人： Matthias Kamuf , Bo Lincoln
发明人： Matthias Kamuf , Bo Lincoln
CPC分类号： H04L1/1845 , H04L1/1812
摘要： A method for an electronic receiver of processing a packet of a hybrid automatic repeat request (HARQ) system is disclosed. The method comprises receiving a first transmission of the packet, wherein the first transmission comprises a first plurality of soft symbol values and determining whether the first plurality of soft symbol values meets a stop criterion. If it is determined that the first plurality of soft symbol values does not meet the stop criterion, a subject of the first plurality of soft symbol values is determined, wherein the subset comprises a number of soft symbol values of the first plurality of soft symbol values, the number being greater than zero and less than the first plurality. The subset of the first plurality of soft symbol values is stored in a HARQ buffer. A second plurality of soft symbol values, comprised in a second transmission of the packet received by the electronic receiver, is combined with the stored subset of the first plurality of soft symbol values to produce a third plurality of combined soft symbol values. Corresponding arrangement, receiver, device, and computer program product are also disclosed.
摘要翻译： 公开了一种用于处理混合自动重传请求（HARQ）系统的分组的电子接收机的方法。 所述方法包括：接收所述分组的第一传输，其中所述第一传输包括第一多个软符号值，并且确定所述第一多个软符号值是否满足停止准则。 如果确定第一多个软符号值不符合停止准则，则确定第一多个软符号值的对象，其中该子集包括第一多个软符号值的多个软符号值 ，该数大于零并小于第一个数。 第一多个软符号值的子集存储在HARQ缓冲器中。 包括在由电子接收机接收的分组的第二传输中的第二多个软符号值与所存储的第一多个软符号值的子集合以产生第三组合的软符号值。 还公开了相应的布置，接收器，设备和计算机程序产品。
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公开(公告)号：US10205561B2
公开(公告)日：2019-02-12
申请号：US13382560
申请日：2010-07-05
申请人： Matthias Kamuf , Bo Lincoln
发明人： Matthias Kamuf , Bo Lincoln
IPC分类号： H04L1/18
摘要： A method for an electronic receiver of processing a packet of a hybrid automatic repeat request (HARQ) system is disclosed. The method comprises receiving a first transmission of the packet, wherein the first transmission comprises a first plurality of soft symbol values and determining whether the first plurality of soft symbol values meets a stop criterion. If it is determined that the first plurality of soft symbol values does not meet the stop criterion, a subject of the first plurality of soft symbol values is determined, wherein the subset comprises a number of soft symbol values of the first plurality of soft symbol values, the number being greater than zero and less than the first plurality. The subset of the first plurality of soft symbol values is stored in a HARQ buffer. A second plurality of soft symbol values, comprised in a second transmission of the packet received by the electronic receiver, is combined with the stored subset of the first plurality of soft symbol values to produce a third plurality of combined soft symbol values. Corresponding arrangement, receiver, device, and computer program product are also disclosed.
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9.发明授权Method and apparatus for robust transmission of control information in wireless communication network 有权用于无线通信网络中控制信息的鲁棒传输的方法和装置公开(公告)号：US08005039B2
公开(公告)日：2011-08-23
申请号：US12464615
申请日：2009-05-12
申请人： Matthias Kamuf , Christian Bergljung , Bo Lincoln
发明人： Matthias Kamuf , Christian Bergljung , Bo Lincoln
IPC分类号： H04W4/00
CPC分类号： H04L5/0064 , H04L5/0007 , H04L5/0053 , H04L5/0058 , H04W72/1289
摘要： A base station includes transmitter and associated processing circuits. The transmitter circuits are configured to transmit control information and data traffic to mobile terminals in repeating transmission intervals, each interval having defined control and data portions. The processing circuits are configured to dynamically determine that the control portion has insufficient resources for transmitting control information to one or more of the mobile terminals, and, in response, at least temporarily transmit control information in the data portion, rather than in the control portion, for a selected one or more of the mobile terminals. Correspondingly, a mobile terminal is configured to selectively search for and decode control information in the data portion of one or more transmission intervals, rather than in the control portion.
摘要翻译： 基站包括发射机和相关联的处理电路。 发射机电路被配置为以重复的传输间隔将控制信息和数据业务传输到移动终端，每个间隔具有定义的控制和数据部分。 处理电路被配置为动态地确定控制部分具有用于向一个或多个移动终端发送控制信息的资源不足，并且作为响应，至少临时地在数据部分中而不是在控制部分中发送控制信息 对于所选择的一个或多个移动终端。 相应地，移动终端被配置为选择性地搜索和解码一个或多个传输间隔的数据部分中的控制信息，而不是在控制部分中。
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10.发明申请Method and Apparatus for Robust Transmission of Control Information in a Wireless Communication Network 有权用于在无线通信网络中鲁棒传输控制信息的方法和装置公开(公告)号：US20100165847A1
公开(公告)日：2010-07-01
申请号：US12464615
申请日：2009-05-12
申请人： Matthias Kamuf , Christian Bergljung , Bo Lincoln
发明人： Matthias Kamuf , Christian Bergljung , Bo Lincoln
CPC分类号： H04L5/0064 , H04L5/0007 , H04L5/0053 , H04L5/0058 , H04W72/1289
摘要： A base station includes transmitter and associated processing circuits. The transmitter circuits are configured to transmit control information and data traffic to mobile terminals in repeating transmission intervals, each interval having defined control and data portions. The processing circuits are configured to dynamically determine that the control portion has insufficient resources for transmitting control information to one or more of the mobile terminals, and, in response, at least temporarily transmit control information in the data portion, rather than in the control portion, for a selected one or more of the mobile terminals. Correspondingly, a mobile terminal is configured to selectively search for and decode control information in the data portion of one or more transmission intervals, rather than in the control portion.
摘要翻译： 基站包括发射机和相关联的处理电路。 发射机电路被配置为以重复的传输间隔将控制信息和数据业务传输到移动终端，每个间隔具有定义的控制和数据部分。 处理电路被配置为动态地确定控制部分具有用于向一个或多个移动终端发送控制信息的资源不足，并且作为响应，至少临时地在数据部分中而不是在控制部分中发送控制信息 对于所选择的一个或多个移动终端。 相应地，移动终端被配置为选择性地搜索和解码一个或多个传输间隔的数据部分中的控制信息，而不是在控制部分中。
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