Source controlled channel decoding using an intra-frame
    1.
    发明授权
    Source controlled channel decoding using an intra-frame 失效
    源控制信道解码使用帧内

    公开(公告)号:US06292922B1

    公开(公告)日:2001-09-18

    申请号:US09460345

    申请日:1999-12-13

    IPC分类号: H03M1301

    摘要: A method for a source-controlled channel-decoding of data in a frame format includes the steps of channel-decoding a given frame of data, determining an a-posteriori information based on a reliability decision of the channel-decoding and/or a source-decoding subsequent to the channel-decoding, calculating an a-priori information based on the a-posteriori information and based on a residual redundancy of the data, and channel-decoding the given frame once more using the a-priori information. The method thus uses the residual correlation between bits in a frame. The method preferably uses the intra-frame correlation in a GSM system. A channel-decoder configuration is also provided.

    摘要翻译: 用于以帧格式的数据的源控制的信道解码的方法包括以下步骤:对给定的数据帧进行信道解码,基于信道解码的可靠性决定和/或来源确定后验信息 - 在信道解码之后的编码,基于所述后验信息,并且基于所述数据的剩余冗余来计算先验信息,并且再次使用所述先验信息对所述给定帧进行信道解码。 因此,该方法使用帧中的比特之间的残差相关性。 该方法优选地在GSM系统中使用帧内相关。 还提供了信道解码器配置。

    Management of seamless handover between different communication systems in an IP dual-mode terminal

    公开(公告)号:US09647874B2

    公开(公告)日:2017-05-09

    申请号:US12312181

    申请日:2006-10-31

    摘要: A dual-mode terminal designed to connect to an IP-based network via a first communication system and a second communication system, the dual-mode terminal including a first physical network interface module adapted to establish a packet-based communication with the IP-based network via the first communication system, the first physical network interface module being accessible via a first physical network interface having a first physical network address; a second physical network interface module adapted to establish a packet-based communication with the IP-based network via the second communication system, the second physical network interface module being accessible via a second physical network interface having a second physical network address; an IP-based protocol stack adapted to operate between a software application in the dual-mode terminal and the first and second physical network interface modules; and a system for performing a seamless handover between the first communication system and the second communication system during a connection to the IP-based network.

    Method of processing received signals, corresponding receiver and computer program product therefor
    4.
    发明授权
    Method of processing received signals, corresponding receiver and computer program product therefor 有权
    处理接收信号的方法,相应的接收机和计算机程序产品

    公开(公告)号:US08830907B2

    公开(公告)日:2014-09-09

    申请号:US13062184

    申请日:2008-09-04

    摘要: Signals received from channels exposed to multi-path propagation via a plurality of diversity antennas and including at least one pilot signal are processed by detecting a set of multi-path components for each received signal and computing a set of channel coefficients from multi-path components of the at least one pilot signal in the set of multi-path components. The set of channel coefficients is organized as a channel coefficient vector. From the channel coefficient vector, a set of combining weights is estimated to be applied to the received signals by: computing a spatial correlation matrix of the channel coefficient vector by neglecting the correlations between multi-path components of the channel coefficient vector having different delays, whereby the correlation matrix is a block diagonal matrix including null coefficients other than for non-null sub-matrixes arranged along the diagonal of the correlation matrix, wherein the sub-matrixes have a size equal to the number of diversity antennas; deriving from the spatial correlation matrix a resulting matrix by calculating the inverse of the sub-matrixes or a scaled version thereof; and multiplying the resulting matrix and the channel coefficient vector in order to obtain the desired set of combining weights.

    摘要翻译: 通过经由多个分集天线暴露于多路径传播并且包括至少一个导频信号的信道接收到的信号通过检测每个接收信号的多路径分量集合并且从多路径分量计算一组信道系数来处理 的多路径分量集合中的至少一个导频信号。 信道系数集合被组织为信道系数向量。 从信道系数向量,通过以下方式估计组合权重集合:通过忽略具有不同延迟的信道系数向量的多径分量之间的相关性来计算信道系数向量的空间相关矩阵, 由此相关矩阵是包括除了相关矩阵的对角线排列的非零子矩阵之外的空系数的块对角矩阵,其中子矩阵的大小等于分集天线的数量; 通过计算子矩阵的逆或其缩放版本从空间相关矩阵导出得到的矩阵; 并乘以所得到的矩阵和信道系数向量,以便获得期望的组合权重集合。

    Switched beam antenna with digitally controlled weighted radio frequency combining
    5.
    发明授权
    Switched beam antenna with digitally controlled weighted radio frequency combining 有权
    具有数字控制加权射频组合的开关波束天线

    公开(公告)号:US08509724B2

    公开(公告)日:2013-08-13

    申请号:US12312846

    申请日:2006-11-29

    IPC分类号: H04B1/06

    摘要: A wireless communication system, wherein a sub-set of radio frequency signals received from corresponding antenna elements is selected and combined into a single radio frequency signal, the single radio frequency signal being processed and demodulated in a single processing chain, includes a radio frequency phasing network for co-phasing the selected radio frequency signals before combining and a processor for controlling combining and phasing in order to obtain a single radio frequency signal having a radio performance indicator which satisfies predetermined conditions.

    摘要翻译: 一种无线通信系统,其中从对应的天线元件接收的射频信号的子集被选择并组合成单个射频信号,在单个处理链中被处理和解调的单个射频信号包括射频定相 网络,用于在组合之前将所选择的射频信号相位,以及用于控制组合和定相的处理器,以便获得具有满足预定条件的无线电性能指示符的单个射频信号。

    METHOD FOR ADAPTIVE DISTRIBUTED MOBILE COMMUNICATIONS, CORRESPONDING SYSTEM AND COMPUTER PROGRAM PRODUCT
    6.
    发明申请
    METHOD FOR ADAPTIVE DISTRIBUTED MOBILE COMMUNICATIONS, CORRESPONDING SYSTEM AND COMPUTER PROGRAM PRODUCT 有权
    自适应分布式移动通信方法,相关系统和计算机程序产品

    公开(公告)号:US20110275376A1

    公开(公告)日:2011-11-10

    申请号:US13142568

    申请日:2008-12-30

    IPC分类号: H04W36/00

    摘要: A method of arranging exchange of signals between user terminals in a cellular communication system and at least one base station including a central unit and a plurality of remote units. The method includes exchanging signals with at least one user terminal simultaneously via at least two remote units by applying at the at least two remote units, separate distributing weighting functions to the signals exchanged with the at least one user terminal.

    摘要翻译: 一种在蜂窝通信系统中的用户终端之间交换信号的方法以及包括中央单元和多个远程单元的至少一个基站的方法。 该方法包括通过在至少两个远程单元处应用至少两个远程单元与至少一个用户终端交换信号,将加权函数分配到与至少一个用户终端交换的信号。

    Management of a Hybrid Communication Network Comprising a Cellular Network and a Local Network
    7.
    发明申请
    Management of a Hybrid Communication Network Comprising a Cellular Network and a Local Network 有权
    包括蜂窝网络和本地网络的混合通信网络的管理

    公开(公告)号:US20100284388A1

    公开(公告)日:2010-11-11

    申请号:US12811028

    申请日:2007-12-28

    IPC分类号: H04W8/00

    摘要: Disclosed herein is a method of managing a hybrid network including a cellular network and a local network wherein a number of dual mode mobile terminals are connectable to a base station of the cellular network through a direct cellular link and are also connectable, one with respect to the other, through the local network by a radio access technique. The method includes the steps of computing a cost associated with a direct connection established along a path (A) extending from a selected mobile terminal to the base station through the cellular link only, computing a cost (Ccg) associated with at least one indirect connection established along a path (B) extending from the selected mobile terminal to the base station through the local network and the cellular network, and selecting for data transmission the path that minimizes the cost.

    摘要翻译: 本文公开了一种管理包括蜂窝网络和本地网络的混合网络的方法,其中多个双模移动终端可通过直接蜂窝链路连接到蜂窝网络的基站,并且也可连接,一个相对于 另一个,通过无线接入技术通过本地网络。 该方法包括以下步骤:计算与通过蜂窝链路从所选移动终端延伸到基站的路径(A)建立的直接连接相关联的成本,计算与至少一个间接连接相关联的成本(Ccg) 沿着从所选择的移动终端通过本地网络和蜂窝网络延伸到基站的路径(B)建立,并且为数据传输选择最小化成本的路径。

    SWITCHED BEAM ANTENNA WITH DIGITALLY CONTROLLED WEIGHTED RADIO FREQUENCY COMBINING
    8.
    发明申请
    SWITCHED BEAM ANTENNA WITH DIGITALLY CONTROLLED WEIGHTED RADIO FREQUENCY COMBINING 有权
    带有数字控制无线电频率组合的开关束天线

    公开(公告)号:US20100130150A1

    公开(公告)日:2010-05-27

    申请号:US12312846

    申请日:2006-11-29

    IPC分类号: H04B17/00 H04B1/06

    摘要: A wireless communication system, wherein a sub-set of radio frequency signals received from corresponding antenna elements is selected and combined into a single radio frequency signal, the single radio frequency signal being processed and demodulated in a single processing chain, includes a radio frequency phasing network for co-phasing the selected radio frequency signals before combining and a processor for controlling combining and phasing in order to obtain a single radio frequency signal having a radio performance indicator which satisfies predetermined conditions.

    摘要翻译: 一种无线通信系统,其中从对应的天线元件接收的射频信号的子集被选择并组合成单个射频信号,在单个处理链中被处理和解调的单个射频信号包括射频定相 网络,用于在组合之前将所选择的射频信号相位,以及用于控制组合和定相的处理器,以便获得具有满足预定条件的无线电性能指示符的单个射频信号。

    Channel estimation using pilot symbols
    9.
    发明申请
    Channel estimation using pilot symbols 有权
    使用导频符号的信道估计

    公开(公告)号:US20070036243A1

    公开(公告)日:2007-02-15

    申请号:US10573830

    申请日:2003-09-30

    IPC分类号: H04L27/06

    摘要: A system for estimating the transfer function of a transmission channel such as the downlink channel in a CDMA system over which a pilot signal and a data signal are transmitted. The system includes at least one estimator for producing first and second channel estimates from the pilot signal and the data signals and a combination node for combining the first and second channel estimates to obtain final combined channel estimates. The system includes an interpolator module adapted for interpolating the second channel estimates over a basic estimation reference time to produce equal numbers of channel estimates over the basic estimation reference time derived from the data signal and the pilot signal respectively, and possibly rate adaptation modules adapted for mapping the channel estimates on the basic estimation reference time. The combination node is a summation node producing the final combined channel estimates as a sum of the first channel estimates and the interpolated second channel estimates.

    摘要翻译: 一种用于估计传输信道的传递函数的系统,例如在其中发送导频信号和数据信号的CDMA系统中的下行链路信道。 该系统包括用于从导频信号和数据信号产生第一和第二信道估计的至少一个估计器,以及用于组合第一和第二信道估计以获得最终组合信道估计的组合节点。 该系统包括内插器模块,其适于在基本估计基准时间内插第二信道估计,以分别在从数据信号和导频信号导出的基本估计参考时间上产生相等数目的信道估计,并且可能的速率适应模块 在基本估计参考时间上映射信道估计。 组合节点是产生最终组合信道估计值作为第一信道估计和内插第二信道估计之和的求和节点。