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1. 发明申请

WO2008147261A1 METHOD AND ARRANGEMENT FOR IMPROVED MODEL ORDER SELECTION 审中-公开
标题翻译：改进型号订单选择的方法和布置
公开(公告)号：WO2008147261A1
公开(公告)日：2008-12-04
申请号：PCT/SE2007/050360
申请日：2007-05-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , LOPEZ, Miguel , ANDERSSON, Tomas , ALMQUIST, Gustav , HUI, Dennis
发明人： LOPEZ, Miguel , ANDERSSON, Tomas , ALMQUIST, Gustav , HUI, Dennis
IPC分类号： H04L25/02 , H04B7/26 , H04J3/06 , H04L7/04
CPC分类号： H04L25/0216
摘要： In a method of enabling model order selection for joint channel synchronization and noise covariance estimation of at least one received signal in a wireless communication network, generating S0 a spatially and temporally stacked signal model by stacking successive samples of temporally adjacent received signal vectors and corresponding training vectors, computing S1 a noise variance matrix for each hypothesized synchronization position, channel length and stacking order, based on the stacked training symbols: determining S2 a best synchronization position for the received signal, based on the stacked training vectors, by jointly determining the best synchronization position for the received signal and estimating a channel length and a stacking order for said signal model based on the stacked training vectors.
摘要翻译：在对无线通信网络中的至少一个接收信号进行联合信道同步和噪声协方差估计的模型阶选择的方法中，通过堆叠时间上相邻的接收信号向量的相继采样和相应的训练来产生空间和时间叠加的信号模型S0 向量，基于堆叠的训练符号，计算每个假设的同步位置，信道长度和堆叠顺序的噪声方差矩阵：基于堆叠的训练向量，通过共同确定最佳状态来确定S2接收信号的最佳同步位置基于叠加的训练向量估计所述信号模型的信道长度和堆叠顺序。

2. 发明申请

WO2011078752A1 DATA MODULATION 审中-公开
标题翻译：数据调制
公开(公告)号：WO2011078752A1
公开(公告)日：2011-06-30
申请号：PCT/SE2009/051474
申请日：2009-12-21
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HUI, Dennis , LOPEZ, Miguel
发明人： HUI, Dennis , LOPEZ, Miguel
IPC分类号： H04L27/36
CPC分类号： H04L27/36 , H04L1/0041 , H04L27/3405
摘要： A modulator (100) comprises a symbol mapper (110) mapping respective bit sets of a bit sequence corresponding to a burst and comprising data, training, tail and guard bits into respective symbols to form a symbol sequence of data, training, tail and guard symbols. A vector precoder (120) applies a vector precoding transformation to the data and training symbols to form precoded symbols. These precoded symbols are combined with the tail and guard symbols in a symbol processor (130) to from a sequence of transmit symbols. The vector precoding conducted by the modulator (100) of a transmitter (200) enables improved link performance without the cost of increased processing complexity of the receiver algorithm.
摘要翻译：调制器（100）包括符号映射器（110），其映射与突发相对应的比特序列的各个比特组，并且包括数据，训练，尾部和保护比特到各个符号中以形成数据，训练，尾部和后卫的符号序列符号。向量预编码器（120）向数据和训练符号应用向量预编码变换以形成预编码符号。这些预编码符号与符号处理器（130）中的尾部和保护符号结合，以从发射符号序列。由发射机（200）的调制器（100）进行的矢量预编码能够改善链路性能，而不会增加接收机算法的处理复杂度。

3. 发明申请

WO2005125036A1 CO-SEQUENCE INTERFERENCE DETECTION AND TREATMENT 审中-公开
标题翻译： CO序列干扰检测和处理
公开(公告)号：WO2005125036A1
公开(公告)日：2005-12-29
申请号：PCT/SE2004/000991
申请日：2004-06-18
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , AXNÄS, Johan , OLSSON, Magnus , HUI, Dennis
发明人： AXNÄS, Johan , OLSSON, Magnus , HUI, Dennis
IPC分类号： H04B1/707
CPC分类号： H04B1/7103 , H04B2201/70701 , H04L25/0224 , H04L25/03178 , H04L25/03292
摘要： Signal properties of a signal section (106) comprising a training sequence are compared with corresponding signal properties of other signal sections (108, 110). At a too large discrepancy, co-sequence interference is concluded to be present. The used signal property can preferably be a signal-to-noise ratio measure or a signal statistics measure. If the existence of co-sequence interference (102) is concluded, measures can be taken to avoid such interference and to mitigate the effects of the interference. A method for mitigating effects of co-sequence interference in channel estimation comprises a joint detection and estimation procedure performed under constrictions assuming presence of co-sequence interference.
摘要翻译：将包括训练序列的信号部分（106）的信号特性与其它信号部分（108,110）的相应信号特性进行比较。在一个太大的差异上，共序干扰得出结论。所使用的信号特性可以优选地是信噪比测量或信号统计测量。如果存在共序干扰（102），则可以采取措施避免这种干扰并减轻干扰的影响。用于减轻协同干扰在信道估计中的影响的方法包括在假设存在协同干扰的收缩下执行的联合检测和估计过程。

4. 发明申请

WO2007128676A1 GENERATION, DEPLOYMENT AND USE OF TAILORED CHANNEL QUALITY INDICATOR TABLES 审中-公开
标题翻译：生成，部署和使用定制渠道质量指标表
公开(公告)号：WO2007128676A1
公开(公告)日：2007-11-15
申请号：PCT/EP2007/053944
申请日：2007-04-23
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HUI, Dennis , CHENG, Jung-Fu , MOLNAR, James Karl , GRANT, Stephen
发明人： HUI, Dennis , CHENG, Jung-Fu , MOLNAR, James Karl , GRANT, Stephen
IPC分类号： H04L1/00 , H04L1/20
CPC分类号： H04L1/0026 , H04L1/0016 , H04L1/20 , H04W48/08 , H04W72/0413 , H04W72/085
摘要： Channel Quality Indicator (CQI) tables are tailored to one or more cells of interest. Tailoring CQI tables to individual cells permits devices such as radio base stations to more reliably and accurately allocate radio resources to those cells since channel conditions vary from cell to cell. According to one embodiment, a table of CQI values is composed by analyzing information indicating channel quality in a cell of interest and generating at least one table of CQI values tailored to the cell of interest based on the information analyzed. The tailored CQI table may be deployed to another device for use in reporting channel quality information. The device may report channel quality by accessing the tailored CQI and identifying the range of CQI values that includes a channel quality estimate derived by the device. The device generates a channel quality information message based on the identified range of CQI values.
摘要翻译：信道质量指示符（CQI）表针对感兴趣的一个或多个小区而定制。由于信道条件因单元而异，所以将CQI表裁定到单个小区允许诸如无线电基站之类的设备更可靠地且准确地分配无线电资源给这些小区。根据一个实施例，通过分析指示感兴趣的小区中的信道质量的信息并基于分析的信息生成针对感兴趣小区定制的CQI值的至少一个表格来组成CQI值表。可以将定制的CQI表部署到用于报告信道质量信息的另一设备。设备可以通过访问定制的CQI并且识别包括由设备导出的信道质量估计的CQI值的范围来报告信道质量。该设备基于所识别的CQI值范围来生成信道质量信息消息。

5. 发明申请

WO2011119140A2 ADAPTIVE FEEDBACK OF CHANNEL INFORMATION FOR COORDINATED TRANSMISSION ON A WIRELESS BACKHAUL 审中-公开
标题翻译：无线反向协调传输的信道反馈自适应反馈
公开(公告)号：WO2011119140A2
公开(公告)日：2011-09-29
申请号：PCT/US2010/028096
申请日：2010-03-22
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , GAN, Jiansong , HOYMANN, Christian , HUI, Dennis
发明人： GAN, Jiansong , HOYMANN, Christian , HUI, Dennis
IPC分类号： H04L25/02
CPC分类号： H04L1/0026 , H04B7/065 , H04B7/155 , H04L1/003 , H04L25/0202 , H04L43/08
摘要： A backhaul link is established between a base station and a relay that assists the base station in communicating with a mobile device over an access link established between the relay and the mobile device. The channel response of the backhaul link is determined by estimating first and second parts of the backhaul link channel response, the second part changing faster than the first part. The first part of the backhaul link channel response is estimated by calculating an average of the backhaul link channel response over a predetermined period at the relay and the second part is estimated by calculating variation in the backhaul link channel response over the predetermined period at the relay. Quantized versions of the first and second parts of the backhaul link channel response are transmitted from the relay to the base station over the backhaul link.
摘要翻译：在基站和中继站之间建立回程链路，帮助基站通过在中继站和移动设备之间建立的接入链路与移动设备进行通信。通过估计回程链路信道响应的第一和第二部分来确定回程链路的信道响应，第二部分比第一部分更快地改变。回程链路信道响应的第一部分通过计算中继站上的预定时段内的回程链路信道响应的平均值来估计，并且通过在继电器上计算预定时段内的回程链路信道响应的变化来估计第二部分。回程链路信道响应的第一和第二部分的量化版本通过回程链路从中继站发送到基站。

6. 发明申请

WO2009088328A1 ZERO-FORCING LINEAR BEAMFORMING FOR COORDINATED CELLULAR NETWORKS WITH DISTRIBUTED ANTENNAS 审中-公开
标题翻译：用于与分布式天线协调的蜂窝网络的零强度线性光束
公开(公告)号：WO2009088328A1
公开(公告)日：2009-07-16
申请号：PCT/SE2008/050019
申请日：2008-01-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ZANGI, Kambiz , HUI, Dennis
发明人： ZANGI, Kambiz , HUI, Dennis
IPC分类号： H04B7/06 , H04B7/04 , H04L1/00
CPC分类号： H04B7/0617 , H04B7/024 , H04B7/0426 , H04B7/0465 , H04W52/346
摘要： In a distributed antenna system (100) that includes a plurality of transmitters (115) and a controller (110), a method, performed by the controller (110), may be characterized by performing dirty-paper coding on downlink transmissions to users based on an order of the users, calculating beamforming vectors to provide that each of the downlink transmissions associated with each of the users does not interfere with other users, and maximizing, based on the calculated beamforming vectors, a data rate subject to a power constraint of the distributed antenna system (100).
摘要翻译：在包括多个发射机（115）和控制器（110）的分布式天线系统（100）中，由控制器（110）执行的方法的特征在于，对基于用户的下行链路传输执行脏纸编码根据用户的顺序，计算波束形成向量以提供与每个用户相关联的每个下行链路传输不干扰其他用户，并且基于所计算的波束成形向量最大化受到功率约束的数据速率分布式天线系统（100）。

7. 发明申请

WO2007003979A1 METHOD AND ARRANGEMENT FOR ESTIMATING DC OFFSET 审中-公开
标题翻译：估计直流偏差的方法和布置
公开(公告)号：WO2007003979A1
公开(公告)日：2007-01-11
申请号：PCT/IB2005/001880
申请日：2005-07-01
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , HUI, Dennis , RAMESH, Rajaram
发明人： HUI, Dennis , RAMESH, Rajaram
IPC分类号： H04L25/06
CPC分类号： H04L25/063 , H04L25/061
摘要： A method and arrangement for estimating a DC offset for a signal received in a radio receiver. The received signal includes a digitally modulated signal component, a DC offset component, and a noise component. When the signal is of a known type, such as a Gaussian Minimum Shift Keying (GMSK)-modulated signal with constant amplitude in a GSM/EDGE cellular radio system, the method exploits the known characteristics of the statistical distribution for the known type of signal to obtain a better estimate of the DC offset. The statistical distribution of the received digitally modulated signal component is first analyzed. That statistical distribution is then compared to the known statistical distribution for the known type of signal to identify differences. The differences are then used to estimate the DC offset. Additional iterations may be performed to further improve the DC estimate.
摘要翻译：一种用于估计在无线电接收机中接收的信号的DC偏移的方法和装置。接收到的信号包括数字调制信号分量，DC偏移分量和噪声分量。当信号是GSM / EDGE蜂窝无线电系统中具有恒定振幅的已知类型的高斯最小移频键控（GMSK）调制信号时，该方法利用了已知类型信号的已知统计分布特征以获得对DC偏移的更好的估计。首先分析接收到的数字调制信号分量的统计分布。然后将统计分布与已知的信号类型的统计分布进行比较以识别差异。然后使用差异来估计DC偏移。可以执行另外的迭代以进一步改善DC估计。

8. 发明申请

WO2007000620A1 METHOD AND DEVICE FOR SYNCHRONIZATION AND CHANNEL ESTIMATION IN A RADIO RECEIVER 审中-公开
标题翻译：用于无线接收机同步和信道估计的方法和设备
公开(公告)号：WO2007000620A1
公开(公告)日：2007-01-04
申请号：PCT/IB2005/001840
申请日：2005-06-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , HUI, Dennis , HAFEEZ, Abdulrauf
发明人： HUI, Dennis , HAFEEZ, Abdulrauf
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04L25/0224
摘要： A device and method in a radio receiver for generating synchronization and channel estimation information based on three parameters consisting of a synchronization position, at least one whitening filter parameter, and a channel estimate. A spatially and temporally stacked signal model is generated by stacking (11) successive samples of temporally adjacent received signal vectors and corresponding training vectors. Initial estimates of a first one or two of the three parameters are then generated (12) based on the spatially and temporally stacked signal model. The rest of the three parameters are then computed (13-16) based on the initial estimates of the first one or two parameters. If a stopping criterion is met (17), the method ends (18) and the parameters are used to process the signal. If the stopping criterion is not met, additional iterations (13-16) are performed to improve the synchronization and estimation information.
摘要翻译：一种无线电接收机中的装置和方法，用于基于由同步位置，至少一个白化滤波器参数和信道估计组成的三个参数来产生同步和信道估计信息。通过堆叠（11）时间相邻的接收信号向量和对应的训练向量的连续采样来生成空间和时间叠加的信号模型。然后基于空间和时间叠加的信号模型生成（12）第一或第二参数的初始估计。然后根据第一个或两个参数的初始估计，计算三个参数中的其余部分（13-16）。如果满足停止标准（17），则方法结束（18），并且使用参数来处理信号。如果不满足停止标准，则执行附加迭代（13-16）以改善同步和估计信息。

9. 发明申请

WO2006136875A1 SYSTEM AND METHOD OF JOINT SYNCHRONIZATION AND NOISE COVARIANCE ESTIMATION 审中-公开
标题翻译：联合同步和噪声协方差估计的系统与方法
公开(公告)号：WO2006136875A1
公开(公告)日：2006-12-28
申请号：PCT/IB2005/002149
申请日：2005-06-24
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , HUI, Dennis , HAFEEZ, Abdulrauf
发明人： HUI, Dennis , HAFEEZ, Abdulrauf
IPC分类号： H04L25/02 , H04B7/26 , H04J3/06
CPC分类号： H04L25/0204 , H04L7/041 , H04L25/0212 , H04L25/0224 , H04L25/0244 , H04L25/03993
摘要： A system and method in a radio receiver for joint synchronization and noise covariance estimation of a received signal. A spatially and temporally stacked signal model, whereby successive samples of temporally adjacent received signal vectors and corresponding training vectors are stacked, is used in the derivation of the estimation problem. The Toeplitz structure of the channel response matrix is neglected in the formulation of the estimation problem. The resulting estimator jointly estimates a synchronisation position, a channel response matrix and a noise covariance matrix. An estimate of a whitened channel is then computed (step 15) based on the noise covariance matrix and the estimate of the channel response matrix.
摘要翻译：用于接收信号的联合同步和噪声协方差估计的无线电接收机中的系统和方法。空间和时间叠加的信号模型，其中叠加时间上相邻的接收信号矢量和对应的训练矢量的连续样本，用于估计问题的推导。在估计问题的形成中忽略了通道响应矩阵的Toeplitz结构。所得到的估计器共同估计同步位置，信道响应矩阵和噪声协方差矩阵。然后基于噪声协方差矩阵和信道响应矩阵的估计来计算白化信道的估计（步骤15）。

10. 发明申请

WO2012047140A1 TIME SLOT SHARING IN TDMA COMMUNICATION SYSTEM 审中-公开
标题翻译： TDMA通信系统中的时隙共享
公开(公告)号：WO2012047140A1
公开(公告)日：2012-04-12
申请号：PCT/SE2010/051082
申请日：2010-10-07
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , HUI, Dennis , LOPEZ, Miguel
发明人： HUI, Dennis , LOPEZ, Miguel
IPC分类号： H04W28/06 , H04L27/20
CPC分类号： H04W72/0446 , H04L1/08 , H04L27/18 , H04W28/04
摘要： The embodiments of the present invention relate to a method in a transmitting unit; a method in a receiving unit; a transmitting unit and a receiving unit, in a wireless communication network employing Time Division Multiple Access, TDMA, for transmitting and, receiving and demodulating data, respectively, the data being transmitted in a signal comprising a burst, wherein bursts relating to N MS number of mobile stations are multiplexed into a single time slot. The transmission comprises grouping a block of N b number of user code bits, representing the data to be transmitted, into N DS /N MS groups of user code bits. Mapping the groups of user code bits to data symbols such that one group is represented by one data symbol, thereby obtaining a block of data symbols, wherein each data symbol is drawn from one or more pre-defined complex-valued symbol constellation(s). The transmission further comprises repeating the block of data symbols, such that the burst to be transmitted comprises N MS number of equal blocks of data symbols, rotating the N MS number of blocks of data symbols according to a mobile-station-specific rotation, and transmitting the rotated blocks of data symbols in a burst in the time slot.
摘要翻译：本发明的实施例涉及发送单元中的方法; 接收单元中的方法; 发射单元和接收单元，在采用时分多址（TDMA）的无线通信网络中，分别用包含脉冲串的信号发送和接收和解调数据，所述信号包括与脉冲串相关的信号移动台被复用到单个时隙中。传输包括将表示要发送的数据的N b个用户码位块的块分组成用户码位的NDS / NMS组。将用户代码位组映射到数据符号，使得一个组由一个数据符号表示，从而获得数据符号块，其中每个数据符号从一个或多个预定义复值符号星座绘制，。传输还包括重复数据符号块，使得要传输的突发包括NMS个数量相等的数据符号块，根据移动站特定的旋转来旋转数据符号块的NMS个数，在时隙中的突发中旋转的数据符号块。

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