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1. 发明授权

EP2168296B1 A METHOD FOR INTERFERENCE ESTIMATION FOR ORTHOGONAL PILOT PATTERNS 有权
标题翻译：程序的麻烦平衡正交导频模式
公开(公告)号：EP2168296B1
公开(公告)日：2016-10-12
申请号：EP08758781.2
申请日：2008-05-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04L25/02 , H04L5/02 , H04L27/26
CPC分类号： H04L27/2647 , H04L5/023 , H04L25/0206 , H04L25/0228 , H04L27/261

2. 发明公开

EP2507958A2 METHOD AND APPARATUS FOR EFFICIENT AMLD MATRIX COMPUTATIONS 审中-公开
标题翻译：方法和设备高效AMLD矩阵计算
公开(公告)号：EP2507958A2
公开(公告)日：2012-10-10
申请号：EP10809045.7
申请日：2010-11-30
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： CAIRNS, Douglas A. , BOTTOMLEY, Gregory E. , JONSSON, Elias
IPC分类号： H04L25/03
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.

3. 发明授权

EP2191595B1 UE MEASUREMENT SCHEDULING BASED ON MEASUREMENT BANDWIDTH 有权
标题翻译： UE测量调度基于测量带宽
公开(公告)号：EP2191595B1
公开(公告)日：2012-10-03
申请号：EP08787464.0
申请日：2008-08-26
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： LINDOFF, Bengt , JONSSON, Elias
IPC分类号： H04B17/00
CPC分类号： H04B17/382 , H04B17/26 , H04B17/318 , H04W36/30

4. 发明公开

EP2420003A1 METHOD AND APPARATUS FOR DIRECT ESTIMATION OF IMPAIRMENT CORRELATIONS FOR RECEIVED SIGNAL PROCESSING 审中-公开
标题翻译：用于直接估计接收信号处理的相关性的方法和装置
公开(公告)号：EP2420003A1
公开(公告)日：2012-02-22
申请号：EP10715777.8
申请日：2010-04-13
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B2201/709727
摘要： According to the teachings disclosed in this document, a receiver estimates impairment correlations for a received signal using received pilot values. This direct estimation of impairment correlations based on direct pilot observations, provides for a rich capture of all impairment sources bearing on the received signal. Advantageously, however, estimation noise is reduced by generating a structured covariance matrix (106)- from the measured covariance matrix (102), and carrying out structured filtering within the structured covariance matrix (108). Structured filtering involves averaging matrix elements that correspond to the same processing delay difference as used for measured impairment correlation estimation. In one or more embodiments, averaged net channel estimates are used to obtain a rank one matrix (104), which is used to convert a measured covariance matrix to a structured covariance matrix, for carrying out structured filtering.
摘要翻译：根据该文献中公开的教导，接收机使用接收到的导频值来估计接收信号的损害相关性。基于直接导频观测的这种对损害相关性的直接估计提供了对接收信号上所有损伤源的丰富捕获。然而，有利地，通过从测量的协方差矩阵（102）生成结构化协方差矩阵（106）并且在结构化协方差矩阵（108）内执行结构化滤波来降低估计噪声。结构化滤波涉及平均矩阵元素，其对应于用于测量的损害相关性估计的相同处理延迟差异。在一个或多个实施例中，使用平均净信道估计来获得秩为1的矩阵（104），其用于将测量的协方差矩阵转换为结构化协方差矩阵，以执行结构化滤波。

5. 发明公开

EP2412105A2 SIGNAL RECEPTION WITH ADJUSTABLE PROCESSING DELAY PLACEMENT 失效转让
标题翻译：具有可调处理延迟放置招待会
公开(公告)号：EP2412105A2
公开(公告)日：2012-02-01
申请号：EP10716039.2
申请日：2010-03-22
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： CAIRNS, Douglas, A. , UESAKA, Kazuyoshi , JONSSON, Elias
IPC分类号： H04B1/707 , H04L25/03
CPC分类号： H04B1/7115 , H04B1/7117 , H04B2201/709727 , H04L25/0216
摘要： The placement of processing delays may be adjusted to facilitate signal reception. In an example embodiment, a composite signal having multiple signal images corresponding to multiple reception delays is received. A root-mean-square (RMS) delay spread is ascertained for the multiple reception delays that correspond to the multiple signal images of the composite signal. A set of temporal points is produced responsive to the RMS delay spread. Multiple processing delays are placed based on the set of temporal points. In different example implementations, the set of temporal points (e.g., of a grid) may be produced by adjusting a spacing between temporal points, by adjusting a total number of temporal points in the set, or by changing a center location of the set. The spacing and number of points may be adjusted responsive to the RMS delay spread. The center location may be adjusted responsive to at least one calculated delay.

6. 发明授权

EP1456968B1 POWER CONTROL IN MOBILE RADIO COMMUNICATIONS SYSTEMS 有权
标题翻译：发射功率控制在移动通信系统
公开(公告)号：EP1456968B1
公开(公告)日：2010-12-01
申请号：EP02791844.0
申请日：2002-12-18
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04B7/005
CPC分类号： H04W52/125 , H04W52/54
摘要： A power control unit (500) for a power control system in a mobile communication system, the power control unit (500) comprising an inner power control loop element (503, 507), which generates a transmit power control command (504), and an outer power control loop element (516) connected to the inner power control loop element (503, 507), the outer power control loop element (516) being configured for providing a target value (506) to the inner power control loop element (503, 507). The outer power control loop element (516) comprises a soft information estimator (509) connected to at least one outer loop regulator (501, 502), wherein the soft information estimator (509) is configured to provide a soft information estimate (510) to the at least one outer loop regulator (503).

7. 发明公开

EP2191595A1 UE MEASUREMENT SCHEDULING BASED ON MEASUREMENT BANDWIDTH 有权
标题翻译： UE测量调度基于测量带宽
公开(公告)号：EP2191595A1
公开(公告)日：2010-06-02
申请号：EP08787464.0
申请日：2008-08-26
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： LINDOFF, Bengt , JONSSON, Elias
IPC分类号： H04B17/00
CPC分类号： H04B17/382 , H04B17/26 , H04B17/318 , H04W36/30
摘要： The method and apparatus described herein uses variable length snapshot periods to determine signal strength measurements. A mobile station determines the measurement bandwidth associated with a base station, and sets the snapshot period based on the measurement bandwidth. The mobile station determines the signal strength of serving and neighboring cells during snapshot periods. Such signal strength measurements may be used to assist and/or direct handover operations.

8. 发明公开

EP2168296A2 A METHOD FOR INTERFERENCE ESTIMATION FOR ORTHOGONAL PILOT PATTERNS 有权
标题翻译：程序的麻烦平衡正交导频模式
公开(公告)号：EP2168296A2
公开(公告)日：2010-03-31
申请号：EP08758781.2
申请日：2008-05-27
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04L5/02 , H04L27/26
CPC分类号： H04L27/2647 , H04L5/023 , H04L25/0206 , H04L25/0228 , H04L27/261
摘要： In an OFDM communications system receiver, channel estimates are processed to remove or reduce noise, exploiting the orthogonality of pilot patterns. The de-noised channel estimates are then used to compute inter-cell interference. The noise effects of orthogonal pilot patterns are selectively removed from channel samples in estimating inter-cell interference, depending on whether data subcarriers are subject to the same interference as pilot subcarriers, and whether data subcarriers are subject to interference from sectors with pilot patterns orthogonal to those in the transmitting sector. A further calculation removes noise from cells not identified by an orthogonal pilot sequence, which may be particularly applicable when large variations exist in the frequency domain of the propagation channel across a pilot pattern.

9. 发明公开

EP2163057A1 MEMORY-SAVING METHOD FOR GENERATING SOFT BIT VALUES FROM AN OFDM SIGNAL 失效
标题翻译： MEMORY GENTLE程序于生成软比特值从OFDM信号
公开(公告)号：EP2163057A1
公开(公告)日：2010-03-17
申请号：EP08760214.0
申请日：2008-05-29
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04L25/03
CPC分类号： H04L27/2649 , H04L25/067 , H04L27/38
摘要： Methods and receiver circuits for determining and employing decision boundary estimates for use in de-mapping QAM symbols in an OFDM receiver are disclosed. The disclosed methods efficiently use memory resources, while taking account of the frequency-selective and time-varying nature of the signal propagation. An OFDM receiver calculates a decision boundary estimate using QAM-modulated symbols selected from a group of OFDM tones and determines soft bit values for symbols selected from an adjacent tone using the decision boundary estimate. The receiver updates the decision boundary estimate using the symbols from the adjacent tone and determines soft bit values for symbols selected from a next-adjacent tone using the updated decision boundary estimate. Once the decision boundary estimate has been updated and the soft bit values have been determined for each tone, the symbol data for that tone may be discarded.

10. 发明公开

EP2025069A1 METHOD AND APPARATUS FOR CORRECTING DATA TRANSMISSION ERRORS 有权
标题翻译：方法和设备的校正数据传输错误
公开(公告)号：EP2025069A1
公开(公告)日：2009-02-18
申请号：EP07729892.5
申请日：2007-06-05
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： JONSSON, Elias
IPC分类号： H04B1/707 , H04B7/04
CPC分类号： H04B7/0413 , H04B1/71075 , H04L1/005 , H04L1/0066 , H04L1/0631 , H04L1/08 , H04L1/1812
摘要： A wireless communication device corrects data transmission errors caused by the simultaneous transmission of multiple streams of data in a Multiple-Input Multiple-Output (MIMO) network. The wireless communication device corrects data transmission errors by removing the signal contribution associated with one or more received signal components from a corresponding received composite signal, thus allowing the remaining components to be decoded relatively free from the signal contribution of the removed components. In one embodiment, the wireless communication device comprises a plurality of antennas and a baseband processor. The antennas are configured to receive a composite signal having a plurality of received signal components. The baseband processor is configured to obtain decoding quality metrics for individual ones of the received signal components, form regenerated received signal components for the received signal components having satisfactory decoding quality metrics, and remove the regenerated received signal components from the received composite signal.

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