公开(公告)号：WO2012102665A1

公开(公告)日：2012-08-02

申请号：PCT/SE2012/050055

申请日：2012-01-23

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  REIAL, Andres

Inventor： REIAL, Andres

IPC: H04B1/7097

CPC classification number: H04B1/123 ,  H04B1/1027

Abstract: A target link signal may be received at a receiving device with the target link signal being received in a received signal also including an interfering link signal. A quality of the interfering link signal in the received signal may be estimated at the receiving device to provide an estimated interfering link signal quality. One of a plurality of interference cancellation techniques may be selected responsive to the estimated interfering link signal quality, and an interference cancellation signal may be generated using the selected one of the plurality of interference cancellation techniques. Information of the interference cancellation signal may be incorporated in the received signal. Responsive to incorporating information of the interference cancellation signal in the received signal, the received signal may be demodulated to provide a demodulated target link signal, and the demodulated target link signal may be decoded to provide a target link bit stream.

Abstract translation: 可以在接收设备处接收目标链路信号，其中目标链路信号被接收在还包括干扰链路信号的接收信号中。 可以在接收设备处估计接收信号中的干扰链路信号的质量，以提供估计的干扰链路信号质量。 可以响应于估计的干扰链路信号质量来选择多个干扰消除技术中的一个，并且可以使用多个干扰消除技术中的所选择的干扰消除技术来生成干扰消除信号。 干扰消除信号的信息可以并入接收信号中。 响应于在接收信号中并入干扰消除信号的信息，可以解调所接收的信号以提供解调的目标链路信号，并且解调的目标链路信号可以被解码以提供目标链路比特流。

公开(公告)号：WO2011128227A1

公开(公告)日：2011-10-20

申请号：PCT/EP2011/055252

申请日：2011-04-05

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  REIAL, Andres

Inventor： REIAL, Andres

IPC: H04B7/08

CPC classification number: H04B7/0885 ,  H04B7/0619 ,  H04B7/086

Abstract: Multiple antennas used for data transmission and/or reception are also used to achieve omni-directional antenna functionality. Signals from the antennas are converted to baseband and stored. Phase shifts are applied to the stored signals to steer the effective reception beam in one of a number of directions. A process of interest (e.g., white space sensing) is applied to the beam to produce a result for the given beam direction. By scanning the beam over a number of representative directions, a spatial receiver range equivalent to that of an omni-directional antenna is achieved.

Abstract translation: 用于数据传输和/或接收的多个天线也用于实现全向天线功能。 来自天线的信号被转换为基带并存储。 将相移应用于所存储的信号以在多个方向中的一个方向上引导有效接收波束。 将感兴趣的过程（例如，白色空间感测）应用于波束以产生给定波束方向的结果。 通过在多个代表性方向上扫描光束，实现了与全向天线相同的空间接收机范围。

公开(公告)号：WO2011004353A3

公开(公告)日：2011-05-12

申请号：PCT/IB2010053163

申请日：2010-07-09

Applicant: ERICSSON TELEFON AB L M ,  CAIRNS DOUGLAS A ,  WALLEN ANDERS ,  REIAL ANDRES

Inventor： CAIRNS DOUGLAS A ,  WALLEN ANDERS ,  REIAL ANDRES

IPC: H04L25/03

CPC classification number: H04L25/03261 ,  H04L25/03235

Abstract: Channel estimation and/or equalization processing is performed m a wireless receiver in two stages. The first stage involves pre-filtering in the frequency domain to compact a grid-based representation of the net channel. The second stage involves implementing reduced-complexity time domain channel estimation and or equalization. According to one embodiment, a received signal transmitted over a net channel is processed by pre-filtering the received signal in the frequency domain The frequency domain pre-filtering compacts an N-tap effective grid-based representation of the net channel into a K-tap compacted grid-based representation of the net channel where K

Abstract translation: 无线接收机在两个阶段执行信道估计和/或均衡处理。 第一阶段涉及在频域中进行预滤波以压缩网络通道的基于网格的表示。 第二阶段涉及实现降低复杂度的时域信道估计和/或均衡。 根据一个实施例，通过在频域中对接收到的信号进行预滤波来处理通过网络信道发射的接收信号。频域预滤波将网络信道的N抽头有效网格表示压缩成K- 基于压缩的基于网格的网络信道的表示，其中K

公开(公告)号：WO2010127984A1

公开(公告)日：2010-11-11

申请号：PCT/EP2010/055777

申请日：2010-04-29

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  ROSENQVIST, Anders ,  REIAL, Andres ,  NILSSON, Johan

Inventor： ROSENQVIST, Anders ,  REIAL, Andres ,  NILSSON, Johan

IPC: H04L25/02

CPC classification number: H04L25/0202 ,  H04L25/0236

Abstract: A user terminal is configured to generate supplemental pilot symbols from data symbols transmitted to other user terminals meeting a predetermined reliability criterion. The supplemental pilot symbols can be used for channel estimation, covariance estimation, CQI estimation, or other purposes.

Abstract translation: 用户终端被配置为从满足预定可靠性标准的其他用户终端发送的数据符号生成补充导频符号。 补充导频符号可用于信道估计，协方差估计，CQI估计或其他目的。

公开(公告)号：WO2010026108A3

公开(公告)日：2010-08-05

申请号：PCT/EP2009061142

申请日：2009-08-28

Applicant: ERICSSON TELEFON AB L M ,  LINDOFF BENGT ,  ROSENQVIST ANDERS ,  REIAL ANDRES

Inventor： LINDOFF BENGT ,  ROSENQVIST ANDERS ,  REIAL ANDRES

IPC: H04L1/00

CPC classification number: H04L1/0026 ,  H04W72/082

Abstract: Methods and apparatus for adaptively transmitting data in a wireless communication network are disclosed, in which channel conditions between a mobile terminal and two or more base stations in an active set are evaluated and used to select a transmission mode from a set of available downlink transmission modes including a non-interference-coordinated point-to-point transmission mode as well as at least one of a multi-cell single-frequency-network transmission mode and an interference-coordinated point-to-point transmission mode. Using the dynamic transmission mode selection described herein, a higher cell-edge throughput in HSDPA systems may be achieved.

Abstract translation: 公开了用于在无线通信网络中自适应地传输数据的方法和设备，其中评估活动集合中的移动终端和两个或更多个基站之间的信道状况，并用于从一组可用的下行链路传输模式中选择传输模式 包括非干扰协调的点对点传输模式以及多小区单频网络传输模式和干扰协调的点对点传输模式中的至少一个。 使用这里描述的动态传输模式选择，可以实现HSDPA系统中更高的小区边缘吞吐量。

公开(公告)号：WO2010023530A3

公开(公告)日：2010-04-22

申请号：PCT/IB2009006619

申请日：2009-08-24

Applicant: ERICSSON TELEFON AB L M ,  CAIRNS DOUGLAS A ,  GRANT STEPHEN ,  REIAL ANDRES ,  ROSENQVIST ANDERS ,  JONSSON ELIAS

Inventor： CAIRNS DOUGLAS A ,  GRANT STEPHEN ,  REIAL ANDRES ,  ROSENQVIST ANDERS ,  JONSSON ELIAS

CPC classification number: H04B1/712 ,  H04B2201/709727

Abstract: With a nonparametric G-Rake receiver, combining weights may be determined using a nonparametric mechanism in multiple-input, multiple-output (MIMO) scenarios. In an example embodiment, a method for a receiving device having a nonparametric G-Rake receiver entails calculating an impairment covariance matrix and determining combining weights. More specifically, the impairment covariance matrix is calculated based on a pilot channel using a nonparametric mechanism in a MIMO scenario in which a code-reuse interference term exists. The combining weights are determined for the nonparametric G-Rake receiver responsive to the impairment covariance matrix and by accounting for the code-reuse interference term.

Abstract translation: 使用非参数G-Rake接收机，可以使用多输入多输出（MIMO）场景中的非参数机制来确定组合权重。 在示例实施例中，具有非参数G-Rake接收机的接收设备的方法需要计算损害协方差矩阵并确定组合权重。 更具体地说，在存在码重用干扰项的MIMO场景中，基于使用非参数机制的导频信道来计算损害协方差矩阵。 针对非参数G-Rake接收机响应于损害协方差矩阵并通过计算代码重用干扰项来确定组合权重。

公开(公告)号：WO2010006874A3

公开(公告)日：2010-04-01

申请号：PCT/EP2009057589

申请日：2009-06-18

Applicant: ERICSSON TELEFON AB L M ,  REIAL ANDRES ,  LINDOFF BENGT ,  ROSENQVIST ANDERS

Inventor： REIAL ANDRES ,  LINDOFF BENGT ,  ROSENQVIST ANDERS

IPC: H04W72/08 ,  H04L1/00

CPC classification number: H04L1/0023 ,  H04W72/1231 ,  H04W72/1284

Abstract: A base station receives channel quality reports from a plurality of mobile terminals. The channel quality reports from the mobile terminals indicate the signal power of the signals received by the mobile terminals from the base station and one or more interference parameters relating to the power of impairment components contributing to the total impairment of the received signal during a first time interval. The base station computes an estimated channel quality indication for a second time interval subsequent to the first time interval based on expected variations in the powers of the impairment components. The estimated channel quality indication for the second time interval is used by the base station to schedule the mobile terminals and to determine the transmission format.

Abstract translation: 基站从多个移动终端接收信道质量报告。 来自移动终端的信道质量报告指示移动终端从基站接收到的信号的信号功率，以及与第一次接收到的信号的总损害有关的损伤分量的功率有关的一个或多个干扰参数 间隔。 基站在第一时间间隔之后的第二时间间隔基于损伤分量的功率的预期变化来计算估计的信道质量指示。 第二时间间隔的估计信道质量指示由基站用于调度移动终端并确定传输格式。

公开(公告)号：WO2010026108A2

公开(公告)日：2010-03-11

申请号：PCT/EP2009/061142

申请日：2009-08-28

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (publ) ,  LINDOFF, Bengt ,  ROSENQVIST, Anders ,  REIAL, Andres

Inventor： LINDOFF, Bengt ,  ROSENQVIST, Anders ,  REIAL, Andres

CPC classification number: H04L1/0026 ,  H04W72/082

Abstract: Methods and apparatus for adaptively transmitting data in a wireless communication network are disclosed, in which channel conditions between a mobile terminal and two or more base stations in an active set are evaluated and used to select a transmission mode from a set of available downlink transmission modes including a non-interference-coordinated point-to-point transmission mode as well as at least one of a multi-cell single-frequency-network transmission mode and an interference-coordinated point-to-point transmission mode. Using the dynamic transmission mode selection described herein, a higher cell-edge throughput in HSDPA systems may be achieved.

Abstract translation: 公开了一种用于在无线通信网络中自适应地发送数据的方法和装置，其中评估活动集中的移动终端与两个或多个基站之间的信道条件，并用于从一组可用的下行链路传输模式中选择传输模式 包括非干扰协调的点对点传输模式以及多小区单频网传输模式和干扰协调点对点传输模式中的至少一个。 使用本文描述的动态传输模式选择，可以实现HSDPA系统中更高的小区边缘吞吐量。

公开(公告)号：WO2009016000A2

公开(公告)日：2009-02-05

申请号：PCT/EP2008/058767

申请日：2008-07-07

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LINDOFF, Bengt ,  REIAL, Andres

Inventor： LINDOFF, Bengt ,  REIAL, Andres

IPC: H04L27/00

CPC classification number: H04L27/3863 ,  H03D3/009 ,  H04L2027/0024

Abstract: A wireless communication system receiver compensates a received signal containing an IQ gain imbalance prior to performing frequency correction. The IQ gain imbalance in the signal is estimated after frequency correction, providing an IQ gain imbalance estimate for subsequent IQ gain imbalance compensation. The IQ gain imbalance estimation includes formulating a plurality of hypotheses of phase error between I and Q signal components, and taking as the actual phase error the hypothesis that yields the maximum power ratio between I and Q signal components. The maximum power ratio is differentiated with respect to the IQ imbalance estimate. The IQ gain imbalance estimate is updated as a function of its prior value(s), the maximum power ratio, and the derivative of the maximum power ratio.

Abstract translation: 无线通信系统接收机在执行频率校正之前补偿包含IQ增益不平衡的接收信号。 在频率校正之后估计信号中的IQ增益不平衡，为随后的IQ增益不平衡补偿提供IQ增益不平衡估计。 IQ增益不平衡估计包括制定I和Q信号分量之间的相位误差的多个假设，并且将实际的相位误差作为产生I和Q信号分量之间的最大功率比的假设。 相对于IQ不平衡估计，最大功率比是不同的。 IQ增益不平衡估计作为其先前值，最大功率比和最大功率比的导数的函数进行更新。

公开(公告)号：WO2007093336A1

公开(公告)日：2007-08-23

申请号：PCT/EP2007/001157

申请日：2007-02-07

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  WANG, Yi-Pin Eric ,  BOTTOMLEY, Gregory, E. ,  REIAL, Andres

Inventor： WANG, Yi-Pin Eric ,  BOTTOMLEY, Gregory, E. ,  REIAL, Andres

IPC: G06F7/544

CPC classification number: G06F7/5443 ,  H04B2201/709727

Abstract: A method and corresponding circuit for determining a final result for a desired series of multiply-and-accumulate (MAC) operations are based on counting the occurrence of products in the desired series of MAC operations, multiplying the counts by their corresponding products to obtain partial sums, and adding the partial sums to obtain the final result. MAC processing as taught herein can be applied to a wide range of applications, such as received signal processing in wireless communication for computationally efficient (and high-rate) generation of interference correlation estimates and/or equalization filter values for a received communication signal.

Abstract translation: 用于确定期望的一系列乘法和累加（MAC）操作的最终结果的方法和相应的电路是基于计算所需系列MAC操作中的乘积的发生，将计数乘以其相应乘积以获得部分 总和，并添加部分和以获得最终结果。 如本文教导的MAC处理可以应用于广泛的应用，例如无线通信中的接收信号处理，用于对接收到的通信信号计算有效（和高速率）产生干扰相关估计和/或均衡滤波器值。