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    • 11. 发明授权
    • Method and base station for data transmission in a wireless communications system
    • 无线通信系统中用于数据传输的方法和基站
    • US06317586B1
    • 2001-11-13
    • US09239421
    • 1999-01-28
    • Martin Haardt
    • Martin Haardt
    • H04B110
    • H04W16/28H04B7/0615H04B7/0617
    • Space covariance matrices are first defined for a kth link from the base station to a wireless station and for a sum of further radio stations, that is to say, in the latter case, the interference for the kth link. In a second step, a beam forming vector w(k) is calculated for the link such that the signal-to-noise ratio in the receiver is maximized. A general intrinsic value problem is thereby solved without iterations. Transmission signals are then weighted with the beam forming vector for the link, and are supplied to the antenna elements for transmission. The method is suitable for TDMA/CDMA and CDMA transmission methods using smart antennas.
    • 空间协方差矩阵首先被定义用于从基站到无线站的第k个链路以及另外的无线电站的总和,也就是说,在后一种情况下,对第k个链路的干扰。 在第二步骤中,针对链路计算波束形成向量w(k),使得接收机中的信噪比最大化。 因此,无需迭代即可解决一般内在价值问题。 然后用链路的波束形成矢量对发射信号进行加权,并将其提供给天线元件进行传输。 该方法适用于使用智能天线的TDMA / CDMA和CDMA传输方法。
    • 13. 发明授权
    • Method and communication system for estimating an error covariance matrix for the downlink in cellular mobile radio telephone networks with adaptive antennas
    • 用于在具有自适应天线的蜂窝移动无线电话网络中估计用于下行链路的误差协方差矩阵的方法和通信系统
    • US07555266B2
    • 2009-06-30
    • US10276922
    • 2001-05-22
    • Martin HaardtChristoph Mecklenbraeuker
    • Martin HaardtChristoph Mecklenbraeuker
    • H04B1/00H04B15/00H04B17/00H04B1/04
    • H04B7/0615H04B7/0617
    • Data is transmitted in a radio communication system having two or more base stations that are located in the network and having additional radio stations, which are each connected to one of the base stations via radio interfaces. At least one first base station has an antenna array with a multitude of antenna elements and with a signal processing device for the directional transmitting-receiving of data. The first base station temporally overlays data to a radio station, which is connected to the base station, for the transmission of data from an external base station to an external radio station connected thereto. The transmission of data from the first base station is also received from the external radio station. The objective is to reduce the amount of disturbance to the external radio station caused by transmissions from the base station in the downlink direction. To this end, the transmitting power of the antenna array of the base station is reduced in the direction toward the external radio station after a transmission of a training signal of the transmitted signal for the external radio station and after the reception of an assignable training signal of the external radio station.
    • 数据在具有位于网络中的具有两个或更多个基站的无线电通信系统中发送,并且具有附加的无线电台,每个基站经由无线电接口连接到基站之一。 至少一个第一基站具有具有多个天线元件的天线阵列以及用于数据的定向发射接收的信号处理装置。 第一基站暂时将数据覆盖到连接到基站的无线电站,用于从外部基站向连接到其的外部无线电台传输数据。 来自第一基站的数据的传输也从外部无线电台接收。 目的是减少由下行链路方向上的基站的传输引起的对外部无线电台的干扰的量。 为此,在发送用于外部无线电台的发送信号的训练信号之后并且在接收到可分配的训练信号之后,基站的天线阵列的发射功率在朝向外部无线电台的方向上减小 的外部广播电台。
    • 15. 发明授权
    • Method, receiver and mobile station for transmitting data in a radio communication system
    • 用于在无线电通信系统中传输数据的方法,接收机和移动台
    • US06377559B1
    • 2002-04-23
    • US09566935
    • 2000-05-08
    • Martin Haardt
    • Martin Haardt
    • H04L1226
    • H04B7/2618
    • A method for transmitting data between radio stations in a radio communication system includes superimposing first signaling information items with second information items at a transmitting end to form an aggregate signal. The aggregate signal is transmitted in a frequency channel, for distinguishing the first signaling information items and the second information items with the aid of individual fine structures. A received signal is evaluated at a receiving end. Initially an influence of the first signaling information items on the second information items is reduced by a compensation calculation carried out with reference to the received signal. Subsequently, the second information items are detected in the received signal already subjected to the compensation calculation. The method can be used in particular with a TD/CDMA transmission process. A receiver and a mobile station are also provided.
    • 一种用于在无线电通信系统中的无线电台之间传送数据的方法包括在发送端将第一信令信息项与第二信息项叠加以形成聚合信号。 聚合信号在频道中发送,用于借助于各个精细结构来区分第一信令信息项和第二信息项。 在接收端对接收到的信号进行评估。 首先,通过参照接收到的信号执行的补偿计算,减少第一信令信息项对第二信息项的影响。 随后,在已经进行了补偿计算的接收信号中检测第二信息项。 该方法可以特别用于TD / CDMA传输过程。 还提供接收机和移动台。
    • 16. 发明授权
    • Method for the high-resolution evaluation of signals for one or
two-dimensional directional or frequency estimation
    • 用于一维或二维定向或频率估计的信号的高分辨率评估方法
    • US5892700A
    • 1999-04-06
    • US860473
    • 1997-09-22
    • Martin Haardt
    • Martin Haardt
    • G01S3/46G01S3/74G06K9/00G06G7/00
    • G06K9/0057G01S3/46G01S3/74
    • A method is specified for the high-resolution evaluation and, if appropriate, for the recovery of narrow-band signals, received by a centrosymmetrical sensor group (AG), for directional estimation. A method is also specified for the high-resolution evaluation of superimposed non-attenuated harmonic signals for spectral analysis in the case, if appropriate, of multi-channel observations. For directional estimation, signals which are noisy and disturbed by multipath propagation can be prepared for recovery. The method for directional estimation is particularly suitable for signal evaluation in mobile radio systems or wireless communication systems, in high-resolution radar image processing systems, sonar systems, and medical technology systems. The method for frequency estimation is suitable for image processing applications, and for a multiplicity of spectral analysis applications.
    • PCT No.PCT / DE96 / 00534。 371日期:1997年9月22日 102(e)1997年9月22日PCT 1996年3月27日PCT公布。 公开号WO96 / 30777 日期1996年10月3日为了进行方向估计,高分辨率评估方法和适当的方式,用于中心对称传感器组(AG)接收的窄带信号的恢复。 在多通道观测的情况下,还规定了用于频谱分析的叠加非衰减谐波信号的高分辨率评估的方法。 对于方向估计,可以制备噪声和多径传播干扰的信号进行恢复。 方向估计方法特别适用于移动无线电系统或无线通信系统,高分辨率雷达图像处理系统,声纳系统和医疗技术系统中的信号评估。 用于频率估计的方法适用于图像处理应用以及多种光谱分析应用。
    • 17. 发明授权
    • Method for selection of an optimized number of subscribers in mobile radio systems
    • 用于在移动无线电系统中选择优化用户数量的方法
    • US08498193B2
    • 2013-07-30
    • US11991735
    • 2006-09-22
    • Martin HaardtMartin Fuchs-LautensackGiovanni Del Galdo
    • Martin HaardtMartin Fuchs-LautensackGiovanni Del Galdo
    • H04J11/00
    • H04B7/0619H04B7/0452
    • This invention comprises a method of little complexity for selection of an optimized number of subscribers for transmission in wire-free message transmission systems having a plurality of antennas at the base station and having one or more antennas at the receivers, as well as space-division multiple access (SDMA) in conjunction with multiple access in the time domain or frequency domain. Subscribers with channels with little spatial correlation are selected for operation in the same time slot or frequency slot, in order to increase the throughput of the SDMA transmission method, with the relationship between the group size and the mean transmission power being taken into account. The invention interacts both with SDMA methods which do not allow any interference (Zero Forcing) and with methods with residual interference. It is based on a novel interpretation of the ZF principle with the aid of orthogonal projection matrices, which allow the channel quality to be estimated with much less computation complexity, based on use or the transmission method. The possible subscriber combinations are sorted efficiently with the aid of a tree-like search algorithm. The method makes use of perfect channel knowledge or alternatively averaged channel statistics. Quality of service requirements for the subscriber as well as fairness criteria can be taken into account.
    • 本发明包括一种在基站具有多个天线并且在接收机处具有一个或多个天线的无线消息传输系统中用于选择用于传输的优化用户数目的复杂度少的方法,以及空分 多次访问(SDMA)结合时域或频域中的多次访问。 选择具有很小的空间相关性的信道的用户在相同的时隙或时隙中进行操作,以便考虑到组大小和平均发射功率之间的关系来增加SDMA传输方法的吞吐量。 本发明与不允许任何干扰(零强制)的SDMA方法和具有残留干扰的方法相互作用。 它是借助于正交投影矩阵对ZF原理的一种新颖的解释,这使得基于使用或传输方法,可以以更少的计算复杂度来估计信道质量。 借助于树形搜索算法可以有效地对可能的用户组合进行排序。 该方法利用完美的频道知识或平均的频道统计。 可以考虑到用户的服务质量要求以及公平性标准。
    • 18. 发明申请
    • Method for Selection of an Optimized Number of Subscribers in Mobile Radio Systems
    • 选择移动无线电系统中优化用户数量的方法
    • US20100054113A1
    • 2010-03-04
    • US11991735
    • 2006-09-22
    • Martin HaardtMartin FuchsGiovanni Del Galdo
    • Martin HaardtMartin FuchsGiovanni Del Galdo
    • H04L12/26H04J11/00
    • H04B7/0619H04B7/0452
    • This invention comprises a method of little complexity for selection of an optimized number of subscribers for transmission in wire-free message transmission systems having a plurality of antennas at the base station and having one or more antennas at the receivers, as well as space-division multiple access (SDMA) in conjunction with multiple access in the time domain or frequency domain. Subscribers with channels with little spatial correlation art selected for operation in the same time slot or frequency slot. In order to increase the throughput of the SDMA transmission method, with the relationship between the group size and the mean transmission power being taken into account. The invention interacts both with SDMA methods which do not allow any interference (Zero Forcing) and with methods with residual interference. It is based on a novel interpretation of the ZF principle with the aid of orthogonal projection matrices, which allow the channel quality to be estimated with much less computation complexity, based on use or the transmission method. The possible subscriber combinations are sorted efficiently with the aid or a tree-like search algorithm. The method makes use of perfect channel knowledge or alternatively averaged channel statistics. Quality of service requirements for the subscriber as well as fairness criteria can be taken into account.
    • 本发明包括一种在基站具有多个天线并且在接收机处具有一个或多个天线的无线消息传输系统中用于选择用于传输的优化用户数目的复杂度少的方法,以及空分 多次访问(SDMA)结合时域或频域中的多次访问。 具有少量空间相关艺术的信道的用户被选择用于在相同的时隙或频率槽中操作。 为了提高SDMA传输方法的吞吐量,考虑到组大小和平均传输功率之间的关系。 本发明与不允许任何干扰(零强制)的SDMA方法和具有残留干扰的方法相互作用。 它是借助于正交投影矩阵对ZF原理的一种新颖的解释,这使得基于使用或传输方法,可以以更少的计算复杂度来估计信道质量。 可能的用户组合通过辅助或树状搜索算法有效地排序。 该方法利用完美的频道知识或平均的频道统计。 可以考虑到用户的服务质量要求以及公平性标准。