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1. 发明申请

WO2011093778A1 METHOD AND ARRANGEMENT IN A TELECOMMUNICATION SYSTEM 审中-公开
标题翻译：电信系统中的方法和布置
公开(公告)号：WO2011093778A1
公开(公告)日：2011-08-04
申请号：PCT/SE2011/050081
申请日：2011-01-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LOPEZ, Miguel , SUNDBERG, Mårten , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , LIBERG, Olof
发明人： LOPEZ, Miguel , SUNDBERG, Mårten , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , LIBERG, Olof
IPC分类号： H04L27/00 , H04L27/26 , H04L5/00
CPC分类号： H04L27/0008 , H04L5/0007 , H04L25/03828 , H04L27/2601 , H04L27/2605 , H04L27/2613
摘要： Methods and devices for coding a slot in a cellular radio system are described. The coding allows for increased robustness and can be designed to be backwards compatible with transmission for e.g. GSM, GPRS, EGPRS and EGPRS2.
摘要翻译：描述了用于对蜂窝无线电系统中的时隙进行编码的方法和设备。编码允许增强的鲁棒性，并且可被设计为向后兼容于例如传输的传输。 GSM，GPRS，EGPRS和EGPRS2。

2. 发明申请

WO2013189540A1 SIMPLIFIED PRACH PROCEDURE USING SPECULATIVE RANDOM ACCESS RESPONSE 审中-公开
标题翻译：使用频谱随机访问响应简化的PRACH程序
公开(公告)号：WO2013189540A1
公开(公告)日：2013-12-27
申请号：PCT/EP2012/061932
申请日：2012-06-21
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , OLSSON, Thomas , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , ENGDAL, David , CARLSSON, Anders , SVENSSON, Jim
发明人： OLSSON, Thomas , SAHLIN, Henrik , BRAUER, Peter , CARLSSON, Roland , ENGDAL, David , CARLSSON, Anders , SVENSSON, Jim
IPC分类号： H04W74/00
CPC分类号： H04W74/0833 , H04W72/04 , H04W74/002
摘要： The present invention relates to method and arrangement in cellular mobile communication systems, in particular for handling of a physical random access channel for example in a Long Term Evolution communication network. By sending to at least one user equipment (101), UE, in a communication network cell (105) an un-solicited speculative random access response, RAR, message comprising information relating to at least one of pre-amble identifier, allocated UE identifier, and uplink resource allocation data for L2/L3 message, it is possible to reduce the complexity of the access node (102), e.g. an eNodeB.
摘要翻译：本发明涉及蜂窝移动通信系统中的方法和装置，特别是用于处理例如长期演进通信网络中的物理随机接入信道。通过向通信网络小区（105）中的至少一个用户设备（101）UE发送未请求的推测性随机接入响应RAR消息，其包括与前同步标识符，分配的UE标识符和用于L2 / L3消息的上行链路资源分配数据，可以降低接入节点（102）的复杂度，例如一个eNodeB。

3. 发明申请

WO2013191597A1 PREFILTERING IN MIMO RECEIVER 审中-公开
标题翻译： MIMO接收机中的预处理
公开(公告)号：WO2013191597A1
公开(公告)日：2013-12-27
申请号：PCT/SE2012/050670
申请日：2012-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAHLIN, Henrik , LOPEZ, Miguel
发明人： SAHLIN, Henrik , LOPEZ, Miguel
IPC分类号： H04B7/04 , H04B7/08
CPC分类号： H04B1/40 , H04B7/0413 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/0246 , H04L25/03 , H04L25/03891 , H04L2025/03426
摘要： Data signals transmitted by a plurality of transmitting antennas over a radio channel are demodulated. The method comprises receiving (202) on a plurality of receiving antennas, a data signal and a reference signal, the contents of the reference signal being known a priori to the receiver. The contents of the reference signal are used for calculating (204) an estimated polynomial channel matrix. A polynomial pre-filter matrix is calculated (206, 208) by a decomposition of the estimated polynomial channel matrix into a product of a paraunitary polynomial matrix and an upper triangular polynomial matrix with minimum phase filters on its main diagonal, where the polynomial pre-filter matrix is obtained by calculating the paraconjugate of the paraunitary polynomial matrix. The received data signal is demodulated (212) where the received data signal is multiplied with the calculated polynomial pre-filter matrix.
摘要翻译：由无线电信道上的多个发送天线发送的数据信号被解调。该方法包括在多个接收天线上接收（202）数据信号和参考信号，参考信号的内容先于接收机已知。参考信号的内容用于计算（204）估计的多项式信道矩阵。通过将估计的多项式信道矩阵分解为在其主对角线上具有最小相位滤波器的超幺多项式矩阵和上三角多项式矩阵的乘积来计算多项式预滤波器矩阵（206,208），其中多项式预滤波器矩阵滤波矩阵是通过计算超幺正多项式矩阵的附属函数得到的。接收的数据信号被解调（212），其中所接收的数据信号与计算的多项式预滤波器矩阵相乘。

4. 发明申请

WO2011093779A1 BLOCK DECODING USING OVERLAPPING AND ADD 审中-公开
标题翻译：使用覆盖和添加块解码
公开(公告)号：WO2011093779A1
公开(公告)日：2011-08-04
申请号：PCT/SE2011/050083
申请日：2011-01-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LOPEZ, Miguel , SAHLIN, Henrik
发明人： LOPEZ, Miguel , SAHLIN, Henrik
IPC分类号： H04L25/02 , H04L27/26
CPC分类号： H04L25/0224 , H04L27/2605
摘要： By exploiting the multi -block structure of the used slot format having a training sequence in the time domain and at least one pre-coded user data block to sequentially reconstruct the slot, using in the first step known symbols and using detected symbols in each subsequent step and improved receiver can be provided. This can result in less ISl/lBI and therefore increased performance. A training sequence known at the receiver is used for channel estimation. The channel estimation is used to reconstruct the value of the received block containing the training sequence. The reconstructed block is subtracted from the received block and an overlapping and add algorithm is applied to the substracted result and the previous block. Finally, the method is recursively applied for the preceedings blocks.
摘要翻译：通过利用具有时域中的训练序列的所使用的时隙格式的多块结构和至少一个预编码的用户数据块来顺序地重构时隙，在第一步骤中使用已知的符号并且在每个后续的步骤中使用检测到的符号可以提供步进和改进的接收机。这样可以减少ISI / IBI，从而提高性能。接收机已知的训练序列用于信道估计。信道估计用于重建包含训练序列的接收块的值。从接收到的块中减去重建的块，并将重叠和添加算法应用于减法结果和先前块。最后，该方法递归地应用于前一个块。

5. 发明申请

WO2011035810A1 CALCULATION OF SOFT VALUES FOR UPLINK COMMUNICATION 审中-公开
标题翻译：计算上传通信软值
公开(公告)号：WO2011035810A1
公开(公告)日：2011-03-31
申请号：PCT/EP2009/062447
申请日：2009-09-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAHLIN, Henrik
发明人： SAHLIN, Henrik
IPC分类号： H04L25/03
CPC分类号： H04L25/03197 , H04L25/03216 , H04L25/03318
摘要： The present invention relates to a node (1) in a wireless communication network (2), the node (1) comprising a receiver (3) arranged for receiving at least two signals streams comprising bit sequences, and for evaluating which bit sequence that is most likely to have been received for a certain sent symbol for each signal stream. The receiver is also arranged for calculating metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) indicative of which bit sequence that initially is most likely to correspond to a certain sent symbol, the metrics (34, 35, 36, 37, 38, 39, 40, 41; 42, 43, 44, 45, 46, 47, 48, 49) further being used a soft value calculation where the receiver (3) is arranged for addition of metric data for a certain signal stream corresponding to an added bit sequence (f) for each case where the available metrics (42, 43, 44, 45, 46, 47, 48, 49) are incomplete for performing the estimation The missing bit is inserted in the added bit sequence in the place where it is missing, and is chosen such that it also corresponds to a symbol (51b) with the shortest Euclidian distance to the symbol (14b) with the said corresponding bit sequence (14; i, f, c) that initially is indicated to be most likely to correspond to a certain sent symbol.
摘要翻译：本发明涉及一种无线通信网络（2）中的节点（1），所述节点（1）包括接收机（3），所述接收机（3）被安排用于接收包含比特序列的至少两个信号流，并且用于评估哪个比特序列是对于每个信号流最有可能被接收到某个发送的符号。接收机还被安排用于计算指示最初最多的位序列的度量（34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49）（34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49）进一步被用于一个软值计算其中接收机（3）被安排用于对于与可用度量（42,43,44,45,46,47,48,48,48,46,47,48,48,48,48,48,48,48,48,48,48,48,48,48,40,40,40,40,40,40,40,40,46,40,41,41,41,41,41,41,41,41,41,41,41 49）对于执行估计是不完整的。丢失的比特被插入到丢失的位置中的添加的比特序列中，并且被选择为使得它也对应于具有与符号（14b）的欧几里德距离最短的符号（51b））与最初被指示为最可能对应于某个发送符号的所述相应位序列（14; i，f，c）。

6. 发明申请

WO2011066851A1 SPATIAL AND TEMPORAL PRE-EQUALIZATION 审中-公开
标题翻译：空间和时间均衡
公开(公告)号：WO2011066851A1
公开(公告)日：2011-06-09
申请号：PCT/EP2009/066138
申请日：2009-12-01
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAHLIN, Henrik , SIHLBOM, Björn Ulf Anders
发明人： SAHLIN, Henrik , SIHLBOM, Björn Ulf Anders
IPC分类号： H04B7/08 , H04L1/06
CPC分类号： H04L25/03133 , H04B1/7115 , H04L25/03159
摘要： The present invention describes a channel equalizer and a method for channel equalization in a receiver in a multi-user communication system. The method comprises the steps of receiving a signal with at least two antennas to produce at least two antenna input streams, measuring the temporal of each antenna input stream and the spatial correlation between the antenna input streams, determining a user-independent pre-equalization filter from the temporal and spatial correlation, filtering the antenna input streams with the pre-equalization filter, and finally inputting the filtered signal to a user-dependent receiver configured to detect the received data symbols of a given user.
摘要翻译：本发明描述了多用户通信系统中的接收机中的信道均衡器和信道均衡方法。该方法包括以下步骤：接收具有至少两个天线的信号以产生至少两个天线输入流，测量每个天线输入流的时间和天线输入流之间的空间相关性，确定与用户无关的预均衡滤波器从时间和空间相关性，用预均衡滤波器对天线输入流进行滤波，最后将经滤波的信号输入到被配置为检测给定用户的接收数据符号的用户相关接收器。

7. 发明申请

WO2010068153A1 METHOD FOR ESTIMATING UPLINK CONTROL CHANNEL QUALITY 审中-公开
标题翻译：估算上网控制信道质量的方法
公开(公告)号：WO2010068153A1
公开(公告)日：2010-06-17
申请号：PCT/SE2008/051428
申请日：2008-12-09
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SIMONSSON, Arne , BURSTRÖM, Per , SAHLIN, Henrik , MÄLLO, Aare
发明人： SIMONSSON, Arne , BURSTRÖM, Per , SAHLIN, Henrik , MÄLLO, Aare
IPC分类号： H04B17/00 , H04W52/16 , H04L1/00
CPC分类号： H04W72/085 , H04L1/0026 , H04L1/0036 , H04L1/20 , H04W52/146 , H04W52/325
摘要： According to embodiment of the present invention, there is provided a radio base station (20) and a corresponding method for estimating the quality of the uplink control channel. The method comprises measuring (32, 42) a quality parameter of the uplink data channel, and using (38, 50) this to estimate the quality of the uplink control channel. In one embodiment, measurements of the uplink control channel are taken and their reliability determined. If the reliability is low (i.e. below a threshold, or below the respective measurements taken on the uplink data channel), then measurements on the data channel are used instead of those made on the control channel to estimate the control channel quality.
摘要翻译：根据本发明的实施例，提供了一种用于估计上行链路控制信道的质量的无线电基站（20）和相应的方法。该方法包括测量（32,42）上行链路数据信道的质量参数，并使用（38,50）来估计上行链路控制信道的质量。在一个实施例中，采用上行链路控制信道的测量并确定其可靠性。如果可靠性低（即低于阈值，或低于在上行链路数据信道上进行的相应测量），则使用数据信道上的测量来代替在控制信道上进行的测量来估计控制信道质量。

8. 发明申请

WO2012096599A1 MODULAR BASE STATION 审中-公开
标题翻译：模块式基站
公开(公告)号：WO2012096599A1
公开(公告)日：2012-07-19
申请号：PCT/SE2011/050029
申请日：2011-01-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAHLIN, Henrik , GÖRANSSON, Bo
发明人： SAHLIN, Henrik , GÖRANSSON, Bo
IPC分类号： H04W72/04 , H04W24/02
CPC分类号： H04W72/0486 , H04B7/024 , H04B7/0842 , H04L5/0035 , H04W72/0426 , H04W88/08 , H04W92/20
摘要： A base station module (50A), configured to be part of a group of base station modules comprising the base station module and other base station modules, the group of base station modules together forming a base station (12), comprises antennas (33A) for receiving radio signals from mobile stations in a base station communication band, a communication interface (86A) for transferring data obtained via the received radio signals to the other base station modules (50B, 50C) and for receiving corresponding data from the other base station modules (50B, 50C), a data handling unit (38A) configured to select data for transfer to the other base station modules and an uplink data processing unit (32A) configured to process channels used by a subset of the mobile stations communicating with the base station, where the subset is assigned to the base station module. The base station module is further configured to use the data received from the other base station modules to influence processing in the uplink data processing unit.
摘要翻译：一种基站模块（50A），被配置为作为包括所述基站模块和其它基站模块的一组基站模块的一部分，所述一组基站模块一起形成基站（12），包括天线（33A）用于从基站通信频带中的移动台接收无线电信号，用于将经由所接收的无线电信号获得的数据传送到其他基站模块（50B，50C）的通信接口（86A），并用于从其他基站接收相应的数据模块（50B，50C），数据处理单元（38A），被配置为选择用于传送到其他基站模块的数据;以及上行链路数据处理单元（32A），被配置为处理与所述其他基站模块通信的移动站的子集使用的信道基站，其中子集被分配给基站模块。基站模块还被配置为使用从其他基站模块接收的数据来影响上行链路数据处理单元中的处理。

9. 发明申请

WO2010118779A1 METHOD AND RECEIVER FOR JOINTLY DECODING RECEIVED COMMUNICATION SIGNALS USING MAXIMUM LIKELIHOOD DETECTION 审中-公开
标题翻译：使用最大似然检测对接收到的通信信号进行连续解码的方法和接收器
公开(公告)号：WO2010118779A1
公开(公告)日：2010-10-21
申请号：PCT/EP2009/054560
申请日：2009-04-16
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAHLIN, Henrik , LINDGREN, Ulf , PARK, Chester , NAUCLÉR, Peter
发明人： SAHLIN, Henrik , LINDGREN, Ulf , PARK, Chester , NAUCLÉR, Peter
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L25/0204 , H04L25/0246 , H04L25/025 , H04L25/03159 , H04L25/03216 , H04L25/03254 , H04L25/0328 , H04L25/03299 , H04L25/03305 , H04L25/03318 , H04L2025/03375
摘要： The present invention relates to a method in a receiver for decoding at least two received communication signals, wherein the communication signals are modulated, pre-coded by a discrete Fourier transform and transmitted by means of single-carrier frequency division multiple access scheme (SC-FDMA). The method comprises the steps of : performing an antenna combining and equalization on a signal observed at the receiver; performing inverse discrete Fourier transform on a model of the observed signal; whitening a time domain model of the observed signal; and jointly detecting the received at least two communication signals by performing soft value calculations based on maximum likelihood detection of a whitened time domain model using a whitened time domain channel estimate.
摘要翻译：本发明涉及用于对至少两个接收到的通信信号进行解码的接收机中的方法，其中通过离散付里叶变换对通信信号进行调制，预编码，并通过单载波频分多址方案（SC- FDMA）。该方法包括以下步骤：对接收机上观察到的信号执行天线组合和均衡; 对观测信号的模型执行逆离散傅里叶变换; 美白观察信号的时域模型; 并且通过使用白化的时域信道估计基于白化时域模型的最大似然检测执行软值计算来共同检测所接收的至少两个通信信号。

10. 发明申请

WO2009151358A1 METHODS AND ARRANGEMENTS IN A WIRELESS COMMUNICATION SYSTEM FOR PRODUCING SIGNAL STRUCTURE WITH CYCLIC PREFIX 审中-公开
标题翻译：用于生成具有循环前缀的信号结构的无线通信系统中的方法和安排
公开(公告)号：WO2009151358A1
公开(公告)日：2009-12-17
申请号：PCT/SE2008/050712
申请日：2008-06-13
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , LARSSON, Peter , SAHLIN, Henrik
发明人： LARSSON, Peter , SAHLIN, Henrik
IPC分类号： H04L27/26
CPC分类号： H04L27/2607 , H04L1/0079 , H04L27/2662
摘要： The present invention relates to methods and arrangements in a wireless communication system supporting cyclic-prefix insertion, using a symbol sequence comprising a number of samples for transmission over a radio channel that enables the handling of very large signal delay spreads. The symbol sequence is built up by a first symbol with CP and a second symbol with CP. The second symbol is a copy of the first symbol with the samples shifted in a way that makes the two adjacent symbols with CP match in regards to the sample order. The symbol sequence may also comprise a third symbol with CP or more, where the third symbol is a copy of the second symbol and with the samples shifted in analogy with the symbol shift described above. The resulting symbol sequence will thus appear as an extended continuous symbol thanks to the precise cyclic shift that matches adjacent symbols. This allows the receiver to place its FFT window anywhere during the extended symbol, e.g. at the end of the symbol sequence thus making it possible to handle a delay spread longer than the CP duration. It also allows to place e.g. two FFT windows and to combine the extracted signal into one SNR improved signal, while still handling a longer delay spread.
摘要翻译：本发明涉及一种支持循环前缀插入的无线通信系统中的方法和装置，其使用包括多个样本的符号序列，以在能够处理非常大的信号延迟扩展的无线电信道上进行传输。符号序列由具有CP的第一个符号和带有CP的第二个符号构成。第二个符号是第一个符号的副本，其中样本以使得具有CP的两个相邻符号与样本顺序匹配的方式移位。符号序列还可以包括具有CP或更多的第三符号，其中第三符号是第二符号的副本，并且样本类似于上述符号移位移位。因此，由于符合相邻符号的精确循环移位，所得到的符号序列因此将显示为扩展的连续符号。这允许接收机将其FFT窗口放置在扩展符号期间的任何地方。因此在符号序列结束时，可以处理长于CP持续时间的延迟扩展。它也允许放置例如。两个FFT窗口，并将提取的信号组合成一个SNR改进的信号，同时仍处理更长的延迟扩展。

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