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1. 发明申请

WO2013004283A8 ENHANCED USE OF FREQUENCY SPECTRUM IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：在无线通信网络中增强频率频谱的使用
公开(公告)号：WO2013004283A8
公开(公告)日：2013-12-27
申请号：PCT/EP2011061176
申请日：2011-07-04
申请人： ERICSSON TELEFON AB L M , SAHLIN HENRIK , PERSSON ANDERS , ENGDAL DAVID , WANG YI-PIN ERIC
发明人： SAHLIN HENRIK , PERSSON ANDERS , ENGDAL DAVID , WANG YI-PIN ERIC
IPC分类号： H04W24/10 , H04L5/14 , H04W72/12
CPC分类号： H04W24/08 , H04L1/0026 , H04L1/0027 , H04W24/10 , H04W72/1226
摘要： The present invention relates to a user terminal (1) arranged for communication with at least one node (2) in a wireless communication network (3). The user terminal (1) is arranged to measure received signal characteristics from at least one other user terminal (4, 5) when it is transmitting signals (6, 7; 8, 9). The measured received signal characteristics are comprised in measurement data. The user terminal (1) is arranged to transfer the measurement data to said node (2) at certain times. The present invention also relates to a node (2) that is arranged to schedule transmission and reception of signals such that each user terminal (1, 4, 5) that communicates via the node (2) either transmits or receives signals to/from the node (2) at a first frequency interval. The node (2) is arranged to transmit and receive signals simultaneously at the first frequency interval. The present invention also relates to a method.
摘要翻译：本发明涉及一种用于在无线通信网络（3）中与至少一个节点（2）通信的用户终端（1）。用户终端（1）被布置成在发送信号（6,7,8,9）时测量来自至少一个其他用户终端（4,5）的接收信号特性。测量的接收信号特性包含在测量数据中。用户终端（1）被布置成在某些时间将测量数据传送到所述节点（2）。本发明还涉及一种节点（2），其被布置成调度信号的发送和接收，使得经由节点（2）进行通信的每个用户终端（1,4,5）向/从所述节点节点（2）以第一频率间隔。节点（2）被布置成以第一频率间隔同时发送和接收信号。本发明还涉及一种方法。

2. 发明申请

WO2007089199A3 METHOD FOR PROCESSING THE RANDOM ACCESS TRANSMISSION IN THE FREQUENCY DOMAIN 审中-公开
标题翻译：在频域中处理随机访问传输的方法
公开(公告)号：WO2007089199A3
公开(公告)日：2007-09-27
申请号：PCT/SE2007050037
申请日：2007-01-24
申请人： ERICSSON TELEFON AB L M , SAHLIN HENRIK , HAARTSEN JACOBUS , BALDEMAIR ROBERT , PARKVALL STEFAN , PETERS GUNNAR
发明人： SAHLIN HENRIK , HAARTSEN JACOBUS , BALDEMAIR ROBERT , PARKVALL STEFAN , PETERS GUNNAR
IPC分类号： H04B1/707 , H04J3/06 , H04J13/00 , H04J13/10 , H04W74/08
CPC分类号： H04W74/0833 , H04J13/0003 , H04L27/2607 , H04L27/2613 , H04W74/08
摘要： There is provided a method of operating a communication system, the communication system comprising a user equipment and a receiver, the method in the system comprising generating a random access transmission in a user equipment and transmitting the random access transmission to the receiver in the communication system, the random access transmission including a preamble; receiving the random access transmission from the user equipment at the receiver; processing the random access transmission in the frequency domain to detect the preamble. In preferred embodiments of the invention, the preamble has a cyclic prefix, or is preceded by a plurality of zero-valued symbols.
摘要翻译：提供了一种操作通信系统的方法，所述通信系统包括用户设备和接收机，所述系统中的方法包括在用户设备中生成随机接入传输并将所述随机接入传输发送到所述通信系统中的接收机，所述随机接入传输包括前同步码; 在接收机处接收来自用户设备的随机接入传输; 处理频域中的随机接入传输以检测前导码。在本发明的优选实施例中，前导码具有循环前缀，或者在多个零值符号之前。

3. 发明申请

WO2009151358A8 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：WO2009151358A8
公开(公告)日：2010-01-28
申请号：PCT/SE2008050712
申请日：2008-06-13
申请人： ERICSSON TELEFON AB L M , 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。

4. 发明申请

WO0233923A3 PREFILTER DESIGN BY SPECTRAL FACTORIZATION 审中-公开
标题翻译：基于谱分解的前置设计
公开(公告)号：WO0233923A3
公开(公告)日：2002-08-01
申请号：PCT/SE0102262
申请日：2001-10-16
申请人： ERICSSON TELEFON AB L M
发明人： LINDBOM LARS , SAHLIN HENRIK
IPC分类号： H04L25/03 , H04L27/00
CPC分类号： H04L25/03038 , H04L2025/0356 , H04L2025/03605
摘要： A baseband signal processing method for calculating a minimum phase version of a channel estimate using spectral factorization is disclosed. The method provides for a low complexity implementation of prefilters. The prefilter does not color the signal and operates as an allpass filter. Additionally, methods are described for constructing prefilters for equalization in both the forward and backward direction.
摘要翻译：公开了一种基带信号处理方法，用于使用频谱分解计算信道估计的最小相位版本。该方法提供了预滤器的低复杂度实现。预滤器不着色信号并作为全通滤波器运行。另外，描述了用于在前向和后向构建用于均衡的预滤波器的方法。

5. 发明申请

WO0243270A3 DETERMINANT-BASED SYNCHRONIZATION TECHNIQUES AND SYSTEMS 审中-公开
标题翻译：基于决策者的同步技术和系统
公开(公告)号：WO0243270A3
公开(公告)日：2002-07-18
申请号：PCT/SE0102528
申请日：2001-11-13
申请人： ERICSSON TELEFON AB L M
发明人： LINDBOM LARS , JOHANSSON INGEMAR , SAHLIN HENRIK
IPC分类号： H04B7/08 , H04L7/00 , H04L7/04 , H04L25/02 , H04B7/26
CPC分类号： H04L25/0216 , H04B7/0805 , H04B7/084 , H04B7/0857 , H04L7/0004 , H04L7/042
摘要： Systems and methods for processing a received radio signal in a communication system are described. Initial time synchronization is acquired using a trace operator. Then, a number of channel taps for use in further processing is determined based on the initial time sync, also using a trace operator. A final synchronization position is then selected using the number of channel taps and, if multiple branches are employed to receive the signal, using a determinant-based technique. Finally, a channel estimate is determined using the final synchronization position.
摘要翻译：描述了在通信系统中处理接收到的无线电信号的系统和方法。使用跟踪操作符获取初始时间同步。然后，还使用跟踪操作符，基于初始时间同步来确定用于进一步处理的多个信道抽头。然后使用信道抽头的数量来选择最终同步位置，并且如果使用多个分支来接收信号，则使用基于行列式的技术。最后，使用最终同步位置来确定信道估计。

6. 发明申请

WO9916170A2 DEVICE FOR SEPARATION OF SIGNALS 审中-公开
标题翻译：分离信号的设备
公开(公告)号：WO9916170A2
公开(公告)日：1999-04-01
申请号：PCT/SE9801590
申请日：1998-09-07
申请人： LINDGREN ULF , BROMAN HOLGER , SAHLIN HENRIK
发明人： LINDGREN ULF , BROMAN HOLGER , SAHLIN HENRIK
IPC分类号： H04R3/00 , H03H21/00
CPC分类号： H03H21/0012
摘要： Method for separating at least two signals from a mixture of signals, in which method the number of different mixtures is at least as great as the number of signals to be separated, the method comprising a modified criterion based on a criterion, which is to be minimised for estimating parameters in a separation structure and a regularising amendment, characterised in that the amendment comprises a first vector with the parameters to be estimated, a second vector with possible information concerning real parameters and a weight matrix, and a product of a difference between said first and second vector, the weight matrix and a conjugated and transposed difference between said first and second vector.
摘要翻译：用于从信号混合中分离出至少两个信号的方法，在该方法中，不同混合物的数量至少与要分离的信号的数量一样大，该方法包括基于准则的修改准则，该准则将最小化以估计分离结构和正则化修正中的参数，其特征在于该修正包括具有待估计参数的第一矢量，具有关于真实参数和权重矩阵的可能信息的第二矢量，以及所述第一和第二矢量，所述权重矩阵以及所述第一和第二矢量之间的共轭和转置差。

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