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1.发明授权REDUCED COMPLEXITY INTERFERENCE SUPPRESSION FOR WIRELESS COMMUNICATIONS 有权STÖRUNGSUNTERDRÜCKUNGREDUZIERTERKOMPLEXITÄTFÜRDIE DRAHTLOSE KOMMUNIKATION
公开(公告)号：EP1987599B1
公开(公告)日：2017-01-25
申请号：EP07709436.5
申请日：2007-01-30
发明人： KHAYRALLAH, Ali.S , ERIKSSON, Håkan , COZZO, Carmela , BOTTOMLEY, Gregory E. , WANG, Yi-Pin Eric
IPC分类号： H04B1/712 , H04B1/7105
CPC分类号： H04B1/712 , H04B1/71052 , H04B1/711 , H04B2201/709727
摘要： The computational complexity required for interference suppression in the reception of wireless communications from multiple users is reduced by sharing information among the users. In some situations, information indicative of a statistical characteristic of the interference is shared among the users. Delays used to produce the interference statistic information are determined based on rake finger delays employed by the users. In some situations, a parameter estimate that is used to calculate combining weights for the users is shared among the users.
摘要翻译： 通过在用户之间共享信息来减少在多个用户的无线通信的接收中的干扰抑制所需的计算复杂度。 在某些情况下，在用户之间共享指示干扰的统计特性的信息。 用于产生干扰统计信息的延迟是基于用户使用的耙指延迟来确定的。 在某些情况下，用户之间共享用于计算用户组合权重的参数估计。
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公开(公告)号：EP2484072A1
公开(公告)日：2012-08-08
申请号：EP10776818.6
申请日：2010-09-30
IPC分类号： H04L25/03
CPC分类号： H04L25/03318 , H04L25/03184 , H04L25/0321 , H04L25/03229 , H04L25/03331 , H04L25/067 , H04L2025/03401 , H04L2025/03414 , H04L2025/03426
摘要： Teachings presented herein offer reduced and stable computational complexity for symbol block detection using multi-stage assistance, and also provide for the generation of soft bit values. A demodulator generates these soft bit values by forming from a set of candidate symbol combinations, for each group of symbols in a symbol block, a subset of candidate symbol combinations for that group. The demodulator selects from the set the most likely combination, at least one combination that has a complementary bit value for a respective bit v value in the most likely combination, and as many of the next most likely combinations not already selected as are needed for the size of the subset to conform to a pre-determined size. The demodulator generates soft bit values by limiting the candidate combinations of symbols considered for a symbol block according to the subsets formed for the groups of symbols in that symbol block.
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3.发明公开METHOD AND APPARATUS FOR SHARED PARAMETER ESTIMATION IN A GENERALIZED RAKE RECEIVER 有权方法和设备的通用RAKE接收机估计共享参数
公开(公告)号：EP2062368A2
公开(公告)日：2009-05-27
申请号：EP07794137.5
申请日：2007-07-17
IPC分类号： H04B1/707
CPC分类号： H04B1/712 , H04B1/7105 , H04B2201/70703 , H04B2201/709727
摘要： The signal impairment correlations for multiple signals in a received multipath are constructed by fitting parametric models associated with each high-data-rate signal in the multipath against measured impairment correlations. The estimated models fitting parameters are applied to form impairment correlation estimates for all signals. The models comprises a separate impairment covariance matrix scaled by a model fitting parameter for each high-data-rate signal and a noise covariance matrix scaled by a noise element model fitting parameter. The model fitting parameters may be estimated by a least-squares formulation and applied to form impairment correlation estimates for all signals of interest. The resulting impairment correlation estimates may be provided to G-RAKE receivers or joint scaling demodulators to demodulate the signals while suppressing interference from the high-data-rate signals.
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4.发明授权A METHOD AND APPARATUS FOR DETECTING A PLURALITY OF SYMBOL BLOCKS USING A DECODER 有权使用解码器检测多个符号块的方法和设备
公开(公告)号：EP2507959B1
公开(公告)日：2018-01-10
申请号：EP10803502.3
申请日：2010-11-22
IPC分类号： H04L25/06
CPC分类号： H04L25/03286 , H04L25/03178 , H04L25/03331 , H04L2025/03426
摘要： Teachings presented herein offer a technique for using a demodulator to improve a demodulation process. For example, a demodulation unit according to an embodiment of the present invention may be a multi-stage demodulator and may include: a demodulator configured to receive a baseband signal and configured to produce modem bit likelihood values based on the received baseband signal; a decoder configured to receive and process the modem bit likelihood values to produce improved modem bit likelihood values; a candidate value generator configured to produce, based on the improved modem bit likelihood values, candidate symbol values for a group of one or more symbols; and a detector configured to receive the baseband signal and the candidate symbol values and configured to produce one of (a) final modem bit estimates and (b) candidate symbol values for a group of symbols.
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5.发明公开RECEIVER AND METHOD FOR TWO-STAGE EQUALIZATION WITH SEQUENTIAL TREE SEARCH 审中-公开EMPFÄNGERUND VERFAHREN ZUR ZWEISTUFIGEN ENTZERRUNG MIT SEQUENZIELLER BAUMSUCHE
公开(公告)号：EP2417738A1
公开(公告)日：2012-02-15
申请号：EP10716098.8
申请日：2010-04-01
IPC分类号： H04L25/03
CPC分类号： H04B7/005 , H04L25/03178
摘要： A receiver and method are described herein that address inter-symbol interference in a received signal by using a two-stage equalizer which includes a first demodulation stage that processes the received signal and produces initial symbol decisions, and a non-linear equalization second stage that uses the received signal to perform a sequential search in an attempt to improve upon the initial symbol decisions where if able to improve upon the initial symbol decisions then an output sequence is obtained from the sequential search and if not able to improve upon the sequence metric threshold then the output sequence is the initial symbol decisions.
摘要翻译： 本文描述了一种接收机和方法，其通过使用包括处理接收信号并产生初始符号决定的第一解调级的两级均衡器来解决接收信号中的符号间干扰，以及非线性均衡第二级， 使用所接收的信号来执行顺序搜索以尝试改进初始符号决定，其中如果能够改进初始符号判定，则从顺序搜索获得输出序列，并且如果不能够改进序列度量阈值 那么输出序列是初始符号决定。
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6.发明公开METHOD AND APPARATUS FOR SUPPRESSING INTERFERENCE BASED ON CHANNELIZATION CODE POWER ESTIMATION WITH BIAS REMOVAL 审中-公开方法和装置用于抑制干扰的ON窜代码的性能估计与BIAS距离为基础
公开(公告)号：EP2089985A2
公开(公告)日：2009-08-19
申请号：EP07870645.4
申请日：2007-10-23
CPC分类号： H04B1/712
摘要： Processing in a baseband processor is improved by estimating channelization code powers when processing received signals and reducing at least one of interference and noise power from the code power estimates. According to one embodiment of a wireless communication device such as a mobile phone or Local Area Network (LAN) adapter, the device comprises circuitry configured to receive a composite signal having contributions from a signal of interest and one or more interfering signals and a baseband processor. The baseband processor is configured to estimate channelization code powers for a channelization code associated with the signal of interest and one or more channelization codes associated with the one or more interfering signals. The baseband processor is also configured to reduce at least one of interference and noise power from the channelization code power estimates.
摘要翻译： 处理在基带处理器通过估计的信道化代码的权力当处理接收的信号，并减少来自码功率估计干扰和噪声功率的至少一个改善。 。根据无线通信设备的一个实施例：诸如移动电话或局域网（LAN）适配器，该装置包括被配置为接收具有从感兴趣和一个或多个干扰信号的信号和基带处理器的贡献的复合信号的电路 ， 基带处理器被配置为估计信道化码对于功率与所关注的一个或与所述一个或多个干扰信号相关联的多个信道化码的信号相关联的信道化码。 基带处理器被这样配置，以减少从所述信道化码功率估计干扰和噪声功率的至少一个。
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7.发明公开
公开(公告)号：EP2067279A2
公开(公告)日：2009-06-10
申请号：EP07794215.9
申请日：2007-09-03
CPC分类号： H04W72/1231 , H04B7/0452 , H04B7/0632 , H04B7/0665 , H04B7/0669 , H04W52/287 , H04W52/325 , H04W52/346 , H04W52/42 , H04W72/042
摘要： In a mobile communication system with a shared downlink traffic channel, the mobile terminals in contention for the downlink traffic channel report channel conditions to the base stations. The base station schedules the mobile terminals based on channel quality estimates from the mobile terminals and selects a transmitter configuration. The transmitter configuration may comprise, for example, the antenna configuration, and/or power and code allocations used by the base station. The base station broadcasts the transmitter configuration to all active and inactive mobile terminals. Knowledge of the transmitter configuration by the inactive mobile terminals improves the accuracy and reliability of the channel quality estimates.
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公开(公告)号：EP2486680B1
公开(公告)日：2018-08-22
申请号：EP10776816.0
申请日：2010-09-28
IPC分类号： H04B17/309 , H04L25/03
CPC分类号： H04B17/309 , H04B17/26 , H04L2025/03426
摘要： The quality of a received signal in a non-linear receiver is estimated using a coupling matrix G or Q that describes the interaction of symbols in the received signal with other symbols and/or how the impairment (noise and interference) interacts in the received signal. The coupling matrix is also useful for joint detection. The signal quality estimate may include, e.g., the minimum eigenvalue, and other functions, such as the determinant and trace of the coupling matrix. When G or Q varies with each block, as in CDMA systems employing longcode scrambling, a representative matrix can be used, such as a matrix of RMS values or average magnitudes of real and imaginary components. The signal quality estimate can be expressed as a bit error rate (BER).
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公开(公告)号：EP1964276B1
公开(公告)日：2016-03-02
申请号：EP06717108.2
申请日：2006-03-08
CPC分类号： H03M13/2957 , H03M13/6331 , H04B1/712 , H04B2201/709727 , H04L1/0048 , H04L1/005 , H04L25/03063
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