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21. 发明授权

US09363697B2 Channel quality index determination 有权
标题翻译：渠道质量指标确定
公开(公告)号：US09363697B2
公开(公告)日：2016-06-07
申请号：US14238221
申请日：2012-07-05
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04B17/309 , H04B17/336 , H04W72/08 , H04L1/00 , H04W24/08 , H04L1/18 , H04L1/20 , H04B17/24 , H04B17/373
CPC分类号： H04L5/0057 , H04B17/24 , H04B17/309 , H04B17/373 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1812 , H04L1/20 , H04L1/203 , H04W24/08 , H04W72/085
摘要： A method of a transceiver arranged to operate in a cellular communication system comprising cells is disclosed. The method comprises receiving a transmission from a first cell; determining an interfering signal and its occupation in time and/or frequency; determining reduced values in the received signal corresponding to the occupation in time and/or frequency of the interfering signal; and measuring a quotient between desired signal and non-desired signal of reference symbols of the received signal. A channel quality index, CQI, is formed taking into account reduction of values performed at the reducing, and the CQI is reported to the communication system. A transceiver and computer program for the same are also disclosed.
摘要翻译：公开了一种布置成在包括小区的蜂窝通信系统中操作的收发机的方法。该方法包括从第一小区接收传输; 确定干扰信号及其在时间和/或频率上的占用; 确定对应于干扰信号的时间和/或频率中的占用的接收信号中的减小值; 并测量接收信号的参考符号的期望信号和非期望信号之间的商。考虑到减少执行的值的减少而形成信道质量指标CQI，并将CQI报告给通信系统。还公开了一种用于其的收发器和计算机程序。

22. 发明授权

US09042336B2 Signaling of precoding vector pattern in a lean-carrier system 有权
标题翻译：在精简载波系统中的预编码矢量模式的信令
公开(公告)号：US09042336B2
公开(公告)日：2015-05-26
申请号：US13527224
申请日：2012-06-19
申请人： Fredrik Nordström , Bengt Lindoff
发明人： Fredrik Nordström , Bengt Lindoff
IPC分类号： H04W72/04 , H04L5/00
CPC分类号： H04W72/0446 , H04L5/0023 , H04L5/0048 , H04L25/0222 , H04L25/03343 , H04L25/03949 , H04L27/261
摘要： In a system using spatial precoding, in the event that reliable channel state information is unavailable, a transmitting node uses an extended transmission mode, in which the precoders applied to data within each of several groups of time-frequency resources vary according to frequency. The extended transmission mode creates a frequency-selective variation in precoders, which may appear to be random, while using DMRS-based transmission. This variation is achieved by applying different precoders to the resource elements carrying data, using a pattern of precoder variation that is known to the receiving device. The precoding applied to DMRS within a given group of time-frequency resources is held constant—thus, the varying precoders within a given group of time-frequency resources are only applied to data elements, not to the DMRS resource elements.
摘要翻译：在使用空间预编码的系统中，在可靠的信道状态信息不可用的情况下，发送节点使用扩展传输模式，其中应用于几组时频资源中的每一组中的数据的预编码器根据频率而变化。在使用基于DMRS的传输时，扩展传输模式在预编码器中产生频率选择性变化，其可能看起来是随机的。通过使用接收设备已知的预编码器变化的模式，将不同的预编码器应用于携带数据的资源元件来实现。在给定的一组时间 - 频率资源内的DMRS应用的预编码保持不变，因此，给定的一组时间 - 频率资源内的变化的预编码器仅被应用于数据元素而不是DMRS资源元素。

23. 发明授权

US09014169B2 Cell search procedure for heterogeneous networks 有权
标题翻译：异构网络的小区搜索过程
公开(公告)号：US09014169B2
公开(公告)日：2015-04-21
申请号：US13161133
申请日：2011-06-15
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04J3/06 , H04W4/00 , H04W48/16 , H04W56/00 , H04J11/00 , H04W84/04
CPC分类号： H04W48/16 , H04J11/004 , H04J11/0076 , H04W56/0015 , H04W56/0085 , H04W84/045 , H04W84/047 , Y02D70/1262
摘要： In a heterogeneous network, low power cells are detected by correlating a first and second signal originating from an unknown cell, such as synchronization signals, e.g., SSS received in a first and second time period (e.g., subframes 0 and 5 of a frame with corresponding sets of possible SSS signals. The cell identities for the candidate cells can be used to determine corresponding reference symbol sequences for the candidate cells. The final determination of the cell identity is then made by correlating a third signal originating from the unknown cell, such as a reference signal received in a third time period (e.g., an almost blank subframe or a broadcast subframe) with the set of reference signals for the candidate cells. The correct cell identity is determined to be the cell identity yielding the greatest correlation with its corresponding reference signal.
摘要翻译：在异构网络中，通过将来自未知小区的第一和第二信号相互关联来检测低功率小区，例如同步信号，例如在第一和第二时间段（例如，帧的子帧0和5中的SSS 可能的SSS信号的相应集合，候选小区的小区标识可以用于确定候选小区的对应参考符号序列，然后通过将来自未知小区的第三信号相关联来进行小区标识的最终确定，作为在第三时间段（例如，几乎空白的子帧或广播子帧）中接收的参考信号与候选小区的参考信号的集合，正确的小区标识被确定为与其相关的最大相关性的小区标识相应的参考信号。

24. 发明授权

US08953698B2 Detecting a transmitted OFDM signal in a receiver having at least two receiver branches 有权
标题翻译：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
IPC分类号： H04B7/02 , H04L1/02 , H04L27/26 , H04B7/08 , H04L25/02
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。

25. 发明申请

US20140200020A1 Channel Quality Index Determination 有权
标题翻译：渠道质量指标测定
公开(公告)号：US20140200020A1
公开(公告)日：2014-07-17
申请号：US14238221
申请日：2012-07-05
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04W24/08 , H04W72/08
CPC分类号： H04L5/0057 , H04B17/24 , H04B17/309 , H04B17/373 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1812 , H04L1/20 , H04L1/203 , H04W24/08 , H04W72/085
摘要： A method of a transceiver arranged to operate in a cellular communication system comprising cells is disclosed. The method comprises receiving a transmission from a first cell; determining an interfering signal and its occupation in time and/or frequency; determining reduced values in the received signal corresponding to the occupation in time and/or frequency of the interfering signal; and measuring a quotient between desired signal and non-desired signal of reference symbols of the received signal. A channel quality index, CQI, is formed taking into account reduction of values performed at the reducing, and the CQI is reported to the communication system. A transceiver and computer program for the same are also disclosed.
摘要翻译：公开了一种布置成在包括小区的蜂窝通信系统中操作的收发机的方法。该方法包括从第一小区接收传输; 确定干扰信号及其在时间和/或频率上的占用; 确定对应于干扰信号的时间和/或频率中的占用的接收信号中的减小值; 并测量接收信号的参考符号的期望信号和非期望信号之间的商。考虑到减少执行的值的减少而形成信道质量指标CQI，并将CQI报告给通信系统。还公开了一种用于其的收发器和计算机程序。

26. 发明申请

US20130237171A1 Receiver Apparatus and Method 有权
标题翻译：接收装置及方法
公开(公告)号：US20130237171A1
公开(公告)日：2013-09-12
申请号：US13885186
申请日：2011-11-24
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04W52/02
CPC分类号： H04W52/0261 , H04W52/0232 , H04W52/0274 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/24
摘要： A receiver is operated in a first power mode, for example a high power mode, during a first portion of a particular connection state (for example, a RRC_CONNECTED state in LTE when the UE receiver is on) of a communication protocol being used by the telecommunications network, and a second power mode during a second portion of the particular connection state, for example a low power mode.
摘要翻译：在特定连接状态的第一部分（例如，当UE接收机处于接通状态的LTE中的RRC_CONNECTED状态）时，接收机以第一功率模式操作，例如高功率模式。电信网络以及在特定连接状态的第二部分期间的第二功率模式，例如低功率模式。

27. 发明申请

US20120219041A1 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：US20120219041A1
公开(公告)日：2012-08-30
申请号：US13036523
申请日：2011-02-28
申请人： Bengt Lindoff , Fredrik Nordström , Leif Wilhelmsson
发明人： Bengt Lindoff , Fredrik Nordström , Leif Wilhelmsson
IPC分类号： H04B1/38
CPC分类号： H04L25/03343 , H04L27/2646 , H04W56/0015 , H04W56/0045
摘要： An Orthogonal Frequency Division Multiplexing (OFDM) symbol for transmission from a non-reference transceiver to a user equipment (UE) in a mobile communication system is generated by ascertaining a general timing for transmission of OFDM symbols, wherein the general timing is associated with a reference transceiver. A UE timing relative to the general timing is ascertained. An initial resource element (RE) value is adjusted by a pre-compensating amount to obtain a pre-compensated RE value, wherein the pre-compensating amount is based on the UE timing relative to the general timing. The pre-compensated resource element value is supplied as one of a plurality of values to be transmitted. An IFFT is performed on the plurality of values to be transmitted to obtain pre-compensated initial signal information. A cyclic prefix is appended to the pre-compensated initial signal information to form an OFDM symbol for transmission from the non-reference transceiver to the UE.
摘要翻译：通过确定用于OFDM符号的传输的一般定时来生成用于在移动通信系统中从非参考收发器到用户设备（UE）的传输的正交频分复用（OFDM）符号，其中，一般定时与参考收发器。确定相对于一般定时的UE定时。通过预补偿量来调整初始资源元素（RE）值以获得预补偿RE值，其中预补偿量基于相对于一般定时的UE定时。预补偿资源元素值被提供为要发送的多个值之一。对要发送的多个值执行IFFT以获得预补偿的初始信号信息。将循环前缀附加到预补偿的初始信号信息以形成用于从非参考收发器到UE的传输的OFDM符号。

28. 发明授权

US08023600B2 Method and apparatus for interference rejection combining and detection 有权
标题翻译：用于干扰抑制组合和检测的方法和装置
公开(公告)号：US08023600B2
公开(公告)日：2011-09-20
申请号：US12138743
申请日：2008-06-13
申请人： Bengt Lindoff , Johan Nilsson , Fredrik Nordström , Leif Wilhelmsson
发明人： Bengt Lindoff , Johan Nilsson , Fredrik Nordström , Leif Wilhelmsson
IPC分类号： H04L1/02 , H03D1/04 , H04B15/00
CPC分类号： H04B7/086 , H04B17/345 , H04J11/005 , H04J11/0093 , H04L25/0204 , H04L25/022 , H04L25/0224 , H04L25/0242
摘要： A multi-branch OFDM receiver combines diversity signals received over different receiver branches using interference rejection combining. The receiver generates first channel estimates associated with a serving base station, second channel estimates associated with at least one non-serving base station, and a time offset between the serving base station and non-serving base station. The receiver computes a noise covariance matrix based on the second channel estimates and the time offset, and then combines the diversity signals received over different branches using the first channel estimates and the noise covariance matrix.
摘要翻译：多分支OFDM接收机使用干扰抑制组合来组合在不同接收机分支上接收的分集信号。接收机产生与服务基站相关联的第一信道估计，与至少一个非服务基站相关联的第二信道估计，以及服务基站与非服务基站之间的时间偏移。接收机基于第二信道估计和时间偏移来计算噪声协方差矩阵，然后使用第一信道估计和噪声协方差矩阵组合在不同分支上接收的分集信号。

29. 发明授权

US07991378B2 Time-error and frequency-error correction in a multi-carrier wireless communications system 有权
标题翻译：多载波无线通信系统中的时间误差和频率误差校正
公开(公告)号：US07991378B2
公开(公告)日：2011-08-02
申请号：US12198366
申请日：2008-08-26
申请人： Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
发明人： Bengt Lindoff , Bo Bernhardsson , Fredrik Nordström
IPC分类号： H04B1/16
CPC分类号： H04L27/0014
摘要： Methods and apparatus for automatic frequency control in wireless receivers configured to simultaneously receive multiple carrier signals at distinct radio frequencies are disclosed. An exemplary wireless device comprises at least first and second radio front-end circuits configured to receive first and second wireless communication signals transmitted via first and second radio-frequency carriers at distinct first and second radio frequencies, respectively, a control processor configured to designate a master carrier signal and a slave carrier signal from among the received wireless communication signals, and a frequency error estimation circuit configured to estimate a first receiver frequency error using the received master carrier signal. The control processor is further configured to calculate a second receiver frequency error from the first receiver frequency error, for use in compensating one or more receiver processes performed on the slave carrier signal.
摘要翻译：公开了用于在不同射频同时接收多个载波信号的无线接收机中的自动频率控制的方法和装置。示例性无线设备包括至少第一和第二无线电前端电路，其被配置为分别接收在不同的第一和第二无线电频率处经由第一和第二无线电频率载波发送的第一和第二无线通信信号，控制处理器被配置为指定来自所接收的无线通信信号中的主载波信号和从载波信号;以及频率误差估计电路，被配置为使用所接收的主载波信号来估计第一接收机频率误差。控制处理器还被配置为从第一接收机频率误差计算第二接收机频率误差，用于补偿对从属载波信号执行的一个或多个接收机处理。

30. 发明授权

US07965780B2 Determination of pre-coding matrix indicators for spatial multiplexing in a mobile communications system 有权
标题翻译：确定移动通信系统中空间复用的预编码矩阵指标
公开(公告)号：US07965780B2
公开(公告)日：2011-06-21
申请号：US11957118
申请日：2007-12-14
申请人： Bengt Lindoff , Fredrik Nordström
发明人： Bengt Lindoff , Fredrik Nordström
IPC分类号： H04L27/28
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/0639 , H04B17/364 , H04L1/0025 , H04L5/0023 , H04L25/0222 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04L2025/03808
摘要： A pre-coding matrix is determined in an OFDMA, multiple transmit antenna communication system having a number of sub-carriers grouped into a number, M, of resource blocks. This involves determining a frequency selectivity of a channel through which received signals have propagated. A number N of selected resource blocks is then determined as a function of the frequency selectivity the N selected resource blocks being those for which pre-coding matrices will be determined, wherein N
摘要翻译：在具有分组为资源块的数量M的多个子载波的OFDMA中的多个发射天线通信系统中确定预编码矩阵。这涉及确定接收信号通过其传播的信道的频率选择性。然后，所选择的资源块的数量N被确定为频率选择性的函数，N个选择的资源块是将被确定预编码矩阵的资源块，其中N

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