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1. 发明授权

US08837556B2 Method and apparatus for blind detection of secondary pilot signal in a wireless communication system 有权
标题翻译：在无线通信系统中盲检测次导频信号的方法和装置
公开(公告)号：US08837556B2
公开(公告)日：2014-09-16
申请号：US13452652
申请日：2012-04-20
申请人： Elias Jonsson , Kazuyoshi Uesaka
发明人： Elias Jonsson , Kazuyoshi Uesaka
IPC分类号： H04B1/00
CPC分类号： H04L25/0226 , H04L5/0051
摘要： In one aspect, the present invention provides for blindly detecting the presence of one or more secondary pilot signals that are not being used to serve a communication apparatus, such as a User Equipment (UE). Among its several advantages, the approach to blind detection taught herein provides robust detection performance, yet it requires relatively few receiver resources. The contemplated apparatus, in at least one example embodiment, uses its blind detection of secondary pilot signal(s) to trigger suppression of secondary pilot interference, for improved reception performance. In a particular, non-limiting example, the apparatus operates in an HSDPA-MIMO network in a non-MIMO mode and blindly detects secondary pilot signal energy associated with the supporting network providing MIMO service to nearby equipment.
摘要翻译：在一个方面，本发明提供盲目检测不用于服务诸如用户设备（UE）的通信设备的一个或多个辅助导频信号的存在。在其几个优点中，本文教导的盲检测方法提供了鲁棒的检测性能，但它需要相对较少的接收器资源。在至少一个示例性实施例中，所设想的装置使用其二次导频信号的盲检测来触发二次导频干扰的抑制，以改善接收性能。在特定的非限制性示例中，设备以非MIMO模式在HSDPA-MIMO网络中操作，并且盲目地检测与向附近设备提供MIMO服务的支持网络相关联的辅助导频信号能量。

2. 发明授权

US08699546B2 Blind detection of modulation configuration for interfering signals 有权
标题翻译：用于干扰信号的调制配置的盲检测
公开(公告)号：US08699546B2
公开(公告)日：2014-04-15
申请号：US13452399
申请日：2012-04-20
申请人： Elias Jonsson , Kazuyoshi Uesaka
发明人： Elias Jonsson , Kazuyoshi Uesaka
IPC分类号： H04B1/00
CPC分类号： H04B1/7115 , H04B1/7107
摘要： Techniques are disclosed for determining which channelization codes are used for an interfering HS-PDSCH transmission without knowing whether a neighboring UE targeted by that transmission has had its 64QAM capability activated by higher layer signaling. The average amplitude is measured for each of several possible groups of channelization codes for each of one or more nearby UEs that might be the targets of interfering HS-PDSCH messages. Testing whether the amplitude is approximately the same across the codes in a possible combination of channelization codes yields a metric value that indicates whether that particular combination of codes is likely to be transmitted to a given UE. A second metric that detects the most likely modulation for possible groups of channelization codes is also calculated. The metrics are combined to determine which combination of channelization codes and modulation scheme is most likely being used for addressing the neighboring UE.
摘要翻译：公开了用于确定哪些信道化码用于干扰HS-PDSCH传输的技术，而不知道该传输所针对的相邻UE是否具有由较高层信令激活的其64QAM能力。对于可能是干扰HS-PDSCH消息的目标的一个或多个附近的UE中的每一个，测量平均幅度中的每一个信道化码的每一个。在信道化码的可能组合中，测试码之间的振幅是否大致相同，产生指示代码的特定组合是否可能被发送给给定UE的度量值。还计算了针对可能的信道化码组可能调制的第二个度量。组合度量以确定信道化码和调制方案的哪个组合最可能用于寻址相邻UE。

3. 发明授权

US08576960B2 Method and apparatus for efficient AMLD matrix computations 有权
标题翻译：用于高效AMLD矩阵计算的方法和装置
公开(公告)号：US08576960B2
公开(公告)日：2013-11-05
申请号：US12628341
申请日：2009-12-01
申请人： Douglas A. Cairns , Gregory E. Bottomley , Elias Jonsson
发明人： Douglas A. Cairns , Gregory E. Bottomley , Elias Jonsson
IPC分类号： H04L27/06 , H04L23/02
CPC分类号： H04L25/03006 , H04B1/71057 , H04B2201/709727 , H04L25/03178 , H04L25/03203 , H04L25/03331 , H04L2025/03426
摘要： The computation of code-specific channel matrices for an Assisted Maximum Likelihood Detection (AMLD) receiver comprises separately computing high rate matrices that change each symbol period, and a low rate matrix that is substantially constant over a plurality of symbol periods. The high and low rate matrices are combined to generate a code-specific channel matrix for each receiver stage. The high rate matrices include scrambling and spreading code information, and the low rate matrices include information on the net channel response and combining weights. The low rate matrices are efficiently computed by a linear convolution in the frequency domain of the net channel response and combining weights (with zero padding to avoid circular convolution), then transforming the convolution to the time domain and extracting matrix elements. Where the combining weights are constant across stages, a common code-specific channel matrix may be computed and used in multiple AMLD receiver stages.
摘要翻译：用于辅助最大似然检测（AMLD）接收机的代码特定信道矩阵的计算包括分别计算改变每个符号周期的高速率矩阵和在多个符号周期上基本上恒定的低速率矩阵。组合高速和低速率矩阵以为每个接收机级生成代码特定的信道矩阵。高速率矩阵包括加扰和扩展码信息，低速率矩阵包括关于网络信道响应和组合权重的信息。低速率矩阵通过网络通道响应的频域中的线性卷积和组合权重（零填充以避免循环卷积）有效地计算，然后将卷积变换到时域并提取矩阵元素。在组合权重跨越阶段恒定的情况下，可以在多个AMLD接收机阶段中计算和使用公共的特定码通道矩阵。

4. 发明申请

US20130279547A1 Blind Detection of Modulation Configuration for Interfering Signals 有权
标题翻译：用于干扰信号的调制配置的盲检测
公开(公告)号：US20130279547A1
公开(公告)日：2013-10-24
申请号：US13452399
申请日：2012-04-20
申请人： Elias Jonsson , Kazuyoshi Uesaka
发明人： Elias Jonsson , Kazuyoshi Uesaka
IPC分类号： H04B1/7115
CPC分类号： H04B1/7115 , H04B1/7107
摘要： Techniques are disclosed for determining which channelization codes are used for an interfering HS-PDSCH transmission without knowing whether a neighboring UE targeted by that transmission has had its 64QAM capability activated by higher layer signaling. The average amplitude is measured for each of several possible groups of channelization codes for each of one or more nearby UEs that might be the targets of interfering HS-PDSCH messages. Testing whether the amplitude is approximately the same across the codes in a possible combination of channelization codes yields a metric value that indicates whether that particular combination of codes is likely to be transmitted to a given UE. A second metric that detects the most likely modulation for possible groups of channelization codes is also calculated. The metrics are combined to determine which combination of channelization codes and modulation scheme is most likely being used for addressing the neighboring UE.
摘要翻译：公开了用于确定哪些信道化码用于干扰HS-PDSCH传输的技术，而不知道该传输所针对的相邻UE是否具有由较高层信令激活的其64QAM能力。对于可能是干扰HS-PDSCH消息的目标的一个或多个附近的UE中的每一个，测量平均幅度中的每一个信道化码的每一个。在信道化码的可能组合中，测试码之间的振幅是否大致相同，产生指示代码的特定组合是否可能被发送给给定UE的度量值。还计算了针对可能的信道化码组可能调制的第二个度量。组合度量以确定信道化码和调制方案的哪个组合最可能用于寻址相邻UE。

5. 发明申请

US20130136087A1 Method and Apparatus for Impairment Correlation Estimation in MIMO Systems 有权
标题翻译： MIMO系统中损伤相关估计的方法和装置
公开(公告)号：US20130136087A1
公开(公告)日：2013-05-30
申请号：US13750109
申请日：2013-01-25
申请人： Elias Jonsson , Andres Reial
发明人： Elias Jonsson , Andres Reial
IPC分类号： H04W72/12
CPC分类号： H04W72/12 , H04B1/7103 , H04B1/712 , H04B7/0615 , H04B7/0669 , H04B7/0697 , H04B2201/70701 , H04B2201/709727 , Y02D70/40 , Y02D70/444
摘要： A method of transmitting communication signals to a plurality of targeted receivers includes transmitting one or more information streams for individual ones of the targeted receivers according to ongoing transmission scheduling, and controlling the ongoing transmission scheduling to reduce the number of impairment contributors that must be considered in received signal processing by scheduled ones of the targeted receivers. In one embodiment the controlling comprises scheduling the targeted receivers to avoid transmissions to more than one targeted receiver at a time. In the same or another embodiment, the controlling comprises at least one of using equal transmit power allocations for one or more information streams, and using fixed transmit power allocations for one or more of the information streams.
摘要翻译：将通信信号发送到多个目标接收机的方法包括根据正在进行的传输调度向目标接收机中的一个发送一个或多个信息流，并且控制正在进行的传输调度以减少必须考虑的损害贡献者的数量由目标接收机中的预定接收机接收信号处理。在一个实施例中，控制包括调度目标接收机以避免一次传送到多于一个的目标接收机。在相同或另一个实施例中，控制包括对一个或多个信息流使用相等的发射功率分配以及对于一个或多个信息流使用固定的发射功率分配中的至少一个。

6. 发明授权

US08411725B2 Channel geometry detector 有权
标题翻译：通道几何检测器
公开(公告)号：US08411725B2
公开(公告)日：2013-04-02
申请号：US12566749
申请日：2009-09-25
申请人： Douglas A. Cairns , Jaroslaw Niewczas , Yoshitaka Murata , Elias Jonsson
发明人： Douglas A. Cairns , Jaroslaw Niewczas , Yoshitaka Murata , Elias Jonsson
IPC分类号： H04B1/00 , H03H7/30
CPC分类号： H04B1/712 , H04B2201/7071
摘要： Adaptive reconfiguration of a wireless receiver is enabled based on channel geometry. According to an embodiment, the wireless receiver includes a geometry factor processing module and signal processing modules, e.g. such as but not limited to an SIR estimation module, a power estimation module, a despreading module, a low-pass filter, a combing weight generation module, a coefficient estimation module, a synchronization control channel interference canceller module, etc. The geometry factor processing module determines a geometry factor for the channel over which signals are transmitted to the wireless receiver, the geometry factor being a measure of the ratio of total transmitted power received by the wireless receiver to total interference plus noise power at the wireless receiver. One or more of the receiver signal processing modules are reconfigurable based on the geometry factor.
摘要翻译：基于信道几何形式启用无线接收机的自适应重新配置。根据实施例，无线接收机包括几何因子处理模块和信号处理模块，例如，例如但不限于SIR估计模块，功率估计模块，解扩散模块，低通滤波器，组合权重生成模块，系数估计模块，同步控制信道干扰消除模块等。几何因子处理模块确定信号被传输到无线接收器的信道的几何因子，几何因子是由无线接收机接收的总发射功率与无线接收机处的总干扰加上噪声功率的比率的度量。接收机信号处理模块中的一个或多个可以基于几何因子来重新配置。

7. 发明授权

US08385965B2 Method and device for power control 有权
标题翻译：功率控制方法和装置
公开(公告)号：US08385965B2
公开(公告)日：2013-02-26
申请号：US11721938
申请日：2005-12-15
申请人： Elias Jonsson , Johan Nilsson , Rama Kumar Mopidevi
发明人： Elias Jonsson , Johan Nilsson , Rama Kumar Mopidevi
IPC分类号： H04B7/00
CPC分类号： H04W52/12 , H04W52/225 , H04W52/24 , H04W52/36 , H04W52/44
摘要： A method for generating a filtered signal quality value used in a power control system of a wireless communication apparatus. An estimated signal quality value of a received signal is generated. A filtered signal quality value is generated based on the estimated signal quality value. The filtered signal quality value is generated in dependence of at least one of registering a difference between a first and a second reference signal quality value, and a change in transmitted power of said received signal. A power control device comprising a signal quality estimator, a BLER estimator, a regulator, and an inner loop is configured to implement the method.
摘要翻译：一种用于生成在无线通信装置的功率控制系统中使用的滤波信号质量值的方法。产生接收信号的估计信号质量值。基于估计的信号质量值生成经过滤波的信号质量值。滤波后的信号质量值根据第一和第二参考信号质量值之间的差异以及所述接收信号的发射功率的变化中的至少一个而产生。包括信号质量估计器，BLER估计器，调节器和内部环路的功率控制设备被配置为实现该方法。

8. 发明授权

US08249007B2 Measurement of cell-specific reference symbols in the presence of MBMS single frequency network transmissions 有权
标题翻译：在存在MBMS单频网络传输的情况下测量小区特定参考符号
公开(公告)号：US08249007B2
公开(公告)日：2012-08-21
申请号：US12532166
申请日：2008-01-11
申请人： Ylva Jading , Erik Dahlman , Elias Jonsson , Stefan Parkvall
发明人： Ylva Jading , Erik Dahlman , Elias Jonsson , Stefan Parkvall
IPC分类号： H04W4/00 , H04W72/00 , H04L12/66
CPC分类号： H04W72/005 , H04J11/0093 , H04L5/0007 , H04L5/005 , H04W36/0055
摘要： A network unit of an own cell is operated in a radio communication system utilizing a radio interface that includes a radio frame made up of a number of sub-frames. The own cell serves one or more user equipments. Operation includes obtaining information about a scheduling of MBSFN data transmissions in one or more neighboring cells. The information thereby obtained is used to generate an information signal that, for a given sub-frame, enables the one or more user equipments to determine whether neighboring cell measurements can be performed using a unicast group of Orthogonal Frequency Division Multiple access (OFDM) symbols. The information signal is transmitted to the one or more user equipments, which can then use the information to determine how to locate cell-specific reference symbols when doing measurements of neighboring cells.
摘要翻译：自身小区的网络单元在利用包括由多个子帧构成的无线帧的无线接口的无线通信系统中进行操作。自己的小区服务于一个或多个用户设备。操作包括获得关于在一个或多个相邻小区中的MBSFN数据传输的调度的信息。由此获得的信息用于生成信息信号，对于给定的子帧，使一个或多个用户设备能够使用正交频分多址（OFDM）符号的单播组来确定是否可以执行相邻小区测量。信息信号被发送到一个或多个用户设备，然后可以在进行相邻小区的测量时使用该信息来确定如何定位小区特定参考符号。

9. 发明申请

US20120155574A1 RECEIVER AND METHOD FOR PROCESSING RADIO SIGNALS USING SOFT PILOT SYMBOLS 有权
标题翻译：使用软件引导符号处理无线电信号的接收器和方法
公开(公告)号：US20120155574A1
公开(公告)日：2012-06-21
申请号：US13403369
申请日：2012-02-23
申请人： Douglas Cairns , Elias Jonsson
发明人： Douglas Cairns , Elias Jonsson
IPC分类号： H04L27/06 , H03D1/24
CPC分类号： H04L25/0236 , H04B2201/70701 , H04B2201/709727 , H04L1/0017 , H04L1/0041 , H04L1/0068 , H04L25/021 , H04L25/0226 , H04L25/03044 , H04L25/03324 , H04L25/061 , H04L27/0012 , H04L27/227 , H04L27/3455 , H04L27/3818 , H04L2001/0098 , H04L2025/03401 , H04L2025/0342 , H04L2025/03426 , H04L2025/03509 , H04L2025/03796 , H04L2027/0061 , H04L2027/0093
摘要： A receiver and method for receiving and processing a sequence of transmitted symbols in a digital communication system utilizing soft pilot symbols. A set of soft pilot symbols are transmitted with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16 QAM or 64 QAM. The receiver knows the modulation type and location (time/frequency/code) of the soft pilot symbols, and demodulates them first. The receiver uses the demodulated soft pilot symbols as known symbols to estimate parameters of the received radio signal. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols.
摘要翻译：一种用于在利用软导频符号的数字通信系统中接收和处理发送符号序列的接收机和方法。通过用诸如BPSK或QPSK之类的较低阶调制来调制软导频符号，同时以诸如16QAM或64等更高阶调制调制剩余符号，发送一组软导频符号比该序列中的剩余符号更高的可靠性。 QAM。接收机知道软导频符号的调制类型和位置（时间/频率/码），并首先解调它们。接收机使用解调的软导频符号作为已知符号来估计所接收的无线电信号的参数。与传统的固定飞行员不同，软飞行员仍然携带一些数据。此外，软导频器在建立解调高阶调制符号时必不可少的幅度参考是特别有用的。

10. 发明授权

US08149763B2 Controlling a power level in a wireless communications system with different scrambling codes 有权
标题翻译：在具有不同扰码的无线通信系统中控制功率电平
公开(公告)号：US08149763B2
公开(公告)日：2012-04-03
申请号：US12296444
申请日：2007-04-03
申请人： Xiaohui Wang , Elias Jonsson
发明人： Xiaohui Wang , Elias Jonsson
IPC分类号： H04B7/005 , H04W52/00
CPC分类号： H04W52/44 , H04W52/12 , H04W52/20 , H04W52/24
摘要： A power level of signals transmitted in a wireless communications system under a first or a second scrambling code, is controlled in an inner power control loop, where a quality measure is repetitively estimated and control commands generated from the quality measure and a quality measure reference value, which in an outer power control loop is adjusted in dependence on a performance level calculated for signals received during a time interval. A first value is adjusted in dependence on a performance level for time intervals with all signals transmitted under the first scrambling code and used during such time intervals. A second value is adjusted in dependence on a performance level for time intervals with at least some signals transmitted under the second scrambling code and used during at least a part of such time intervals.
摘要翻译：在第一或第二扰码下在无线通信系统中发送的信号的功率电平在内部功率控制环路中被控制，其中重复地估计质量测量值，并且从质量测量和质量测量参考值产生的控制命令，其在外部功率控制环路中根据在时间间隔期间接收的信号计算的性能水平来调整。根据在第一扰码下传输的所有信号的时间间隔的性能水平来调整第一值并且在这样的时间间隔期间使用第一值。根据具有至少一些在第二扰码下传送的信号的时间间隔的性能水平来调整第二值，并且在这样的时间间隔的至少一部分期间使用第二值。

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