利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.027 秒)

    Method and/or OFDM device for SC-FDMA data transmission
    3.
    发明授权
    Method and/or OFDM device for SC-FDMA data transmission 有权
    用于SC-FDMA数据传输的方法和/或OFDM设备

    公开(公告)号：US08422572B2

    公开(公告)日：2013-04-16

    申请号：US12448362

    申请日：2007-03-22

    申请人： Andreas Forck ,  Holger Gaebler ,  Thomas Haustein ,  Thomas Hindelang ,  Volker Jungnickel ,  Wolfgang Zirwas

    发明人： Andreas Forck ,  Holger Gaebler ,  Thomas Haustein ,  Thomas Hindelang ,  Volker Jungnickel ,  Wolfgang Zirwas

    IPC分类号： H04K1/10 ,  H04L27/28

    CPC分类号： H04L27/2636

    摘要： In a method and/or an OFDM device for SC-FDMA data transmission, a sequence of input data is transformed by means of a discrete transformation as transformed data signals of coded and modulated data signals on first frequency channels into a first frequency space over a first number of frequencies. The transformed data signals are mapped on second frequency channels in a second frequency space with a larger second number of frequencies. The transformed data signals on the second frequency channels are inverse-transformed using an inverse transformation. Data inversely transformed in such a way are provided for transmission. The transformed data signals are mapped into a frequency range of the second frequency channels in such a way that a constant component of the transformed data signals is mapped centrally within the frequency range.

    摘要翻译： 在用于SC-FDMA数据传输的方法和/或OFDM装置中，通过离散变换将输入数据序列变换为第一频率信道上的编码和调制数据信号的变换数据信号， 第一个频率。 经变换的数据信号被映射在具有较大的第二数量频率的第二频率空间中的第二频率信道上。 使用逆变换对第二频率信道上的经变换的数据信号进行逆变换。 以这种方式进行逆变换的数据被提供用于传输。 变换的数据信号被映射到第二频率信道的频率范围，使得经变换的数据信号的恒定分量被集中地映射在频率范围内。

    Method for operating radio communication system, including sending station and receiving station thereof
    4.
    发明授权
    Method for operating radio communication system, including sending station and receiving station thereof 有权
    用于操作无线电通信系统的方法，包括发送站及其接收站

    公开(公告)号：US08005045B2

    公开(公告)日：2011-08-23

    申请号：US12306685

    申请日：2007-06-25

    申请人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Clemens von Helmolt ,  Wolfgang Zirwas

    发明人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Clemens von Helmolt ,  Wolfgang Zirwas

    IPC分类号： H04Q7/00

    CPC分类号： H04L5/023 ,  H04L1/0003 ,  H04L1/0029 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03802 ,  H04W72/08

    摘要： In a radio communication system, at least a first frequency band is subdivided into C radio resource units which are allocable for radio transmissions between radio stations and terminals. Each radio resource unit has at least two adjacent subcarriers, for allocation of at least a first resource unit for a data transmission between a terminal and a radio station. The radio station receives from the terminal a first short training symbol which has spectrally the same bandwidth as the first frequency band and includes at least Q frequency carriers, where Q is greater or equal to C, but smaller than the total number of subcarriers. The radio station estimates the radio channel for at least the first radio resource unit using the first short training symbol, and an allocation of the first radio resource unit to the terminal is broadcasted by the radio station.

    摘要翻译： 在无线电通信系统中，至少第一频带被细分为可分配给无线电台和终端之间的无线电传输的C个无线电资源单元。 每个无线电资源单元具有至少两个相邻子载波，用于分配用于终端和无线电台之间的数据传输的至少第一资源单元。 无线电台从终端接收具有频谱上与第一频带相同的带宽的第一短训练符号，并且至少包括Q个频率载波，其中Q大于或等于C，但是小于副载波的总数。 无线电站使用第一短训练符号估计至少第一无线电资源单元的无线电信道，无线电台广播第一无线电资源单元对终端的分配。

    METHOD FOR OPERATING RADIO COMMUNICATION SYSTEM, INCLUDING SENDING STATION AND RECEIVING STATION THEREOF
    6.
    发明申请
    METHOD FOR OPERATING RADIO COMMUNICATION SYSTEM, INCLUDING SENDING STATION AND RECEIVING STATION THEREOF 有权
    无线电通信系统的运行方法，包括发送站和接收站

    公开(公告)号：US20100046402A1

    公开(公告)日：2010-02-25

    申请号：US12306685

    申请日：2007-06-25

    申请人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Clemens von Helmolt ,  Wolfgang Zirwas

    发明人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Clemens von Helmolt ,  Wolfgang Zirwas

    IPC分类号： H04J3/00 ,  H04W72/04 ,  H04J1/00 ,  H04L27/28

    CPC分类号： H04L5/023 ,  H04L1/0003 ,  H04L1/0029 ,  H04L25/0204 ,  H04L25/0228 ,  H04L25/03343 ,  H04L2025/03802 ,  H04W72/08

    摘要： In a radio communication system, at least a first frequency band is subdivided into C radio resource units which are allocable for radio transmissions between radio stations and terminals. Each radio resource unit has at least two adjacent subcarriers, for allocation of at least a first resource unit for a data transmission between a terminal and a radio station. The radio station receives from the terminal a first short training symbol which has spectrally the same bandwidth as the first frequency band and includes at least Q frequency carriers, where Q is greater or equal to C, but smaller than the total number of subcarriers. The radio station estimates the radio channel for at least the first radio resource unit using the first short training symbol, and an allocation of the first radio resource unit to the terminal is broadcasted by the radio station.

    摘要翻译： 在无线电通信系统中，至少第一频带被细分为可分配给无线电台和终端之间的无线电传输的C个无线电资源单元。 每个无线电资源单元具有至少两个相邻子载波，用于分配用于终端和无线电台之间的数据传输的至少第一资源单元。 无线电台从终端接收具有频谱上与第一频带相同的带宽的第一短训练符号，并且至少包括Q个频率载波，其中Q大于或等于C，但是小于副载波的总数。 无线电站使用第一短训练符号估计至少第一无线电资源单元的无线电信道，无线电台广播第一无线电资源单元对终端的分配。

    Method to Determine the Number of Data Streams to Be Used in a MIMO System
    7.
    发明申请
    Method to Determine the Number of Data Streams to Be Used in a MIMO System 审中-公开
    确定在MIMO系统中使用的数据流的数量的方法

    公开(公告)号：US20090175320A1

    公开(公告)日：2009-07-09

    申请号：US12084386

    申请日：2006-10-24

    申请人： Thomas Haustein ,  Volker Jungnickel ,  Egon Schulz ,  Wolfgang Zirwas

    发明人： Thomas Haustein ,  Volker Jungnickel ,  Egon Schulz ,  Wolfgang Zirwas

    IPC分类号： H04B1/38

    CPC分类号： H04L1/0631 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0031 ,  H04L1/0625

    摘要： The invention relates to a method to determine a transmission mode to be used at a MIMO-transmitter. The determination of an optimum transmission mode is done at the side of a MIMO-receiver. The receiver calculates for each stream of a maximum number of received streams an effective SINR-value for a given first linear dispersion code LDC. The SINR value of each stream is used to select, according to a desired BER target, a suitable modulation alphabet for each stream. A sum-rate is calculated over all streams and a first stream with a minimum effective SINR value is separated and is not considered furthermore. A linear dispersion code LDC with a smaller code rate than the first linear dispersion code LDC is selected and SINR-values for the remaining N-I streams are calculated. A new sum-rate is obtained accordingly. In case that the new sum rate of the remaining N-I streams is smaller than the sum rate of N streams, the sum-rate calculation is terminated. In all other cases, the step of separation of a stream with smallest effective SINR, the step of selection of a linear dispersion code LDC with a smaller code rate than the linear dispersion code LDC before and the step of calculation of SINR value for remaining streams are repeated accordingly. The most suitable code rate of the linear dispersion code LDC is selected after the termination and the code rate is reported to the transmitter, together with assigned quantized effective SINR value of each stream, to allow a final decision about a optimum transmission mode at the transmitter.

    摘要翻译： 本发明涉及一种确定在MIMO发射机上使用的传输模式的方法。 在MIMO接收机侧进行最佳传输模式的确定。 接收机针对给定的第一线性色散码LDC的最大数量的接收流计算每个流的有效SINR值。 每个流的SINR值用于根据期望的BER目标选择每个流的合适的调制字母表。 在所有流上计算总和速率，并且具有最小有效SINR值的第一流被分离，并且不被进一步考虑。 选择具有比第一线性色散码LDC更小的码率的线性色散码LDC，并且计算剩余的N-1个流的SINR值。 相应地获得了新的总和。 在剩余N-I流的新的和速小于N个流的和速的情况下，和计算结束。 在所有其他情况下，分离具有最小有效SINR的流的步骤，选择具有比之前的线性色散码LDC更小的码率的线性色散码LDC的步骤以及计算剩余流的SINR值的步骤 相应地重复。 在终止之后选择线性色散码LDC的最合适的码率，并将码率与每个流的分配的量化的有效SINR值一起报告给发射机，以允许关于发射机处的最佳传输模式的最终决定 。

    Transmitting a First and a Second Channel Quality Information Between Two Network Elements
    9.
    发明申请
    Transmitting a First and a Second Channel Quality Information Between Two Network Elements 审中-公开
    在两个网络元素之间传输第一个和第二个信道质量信息

    公开(公告)号：US20110305154A1

    公开(公告)日：2011-12-15

    申请号：US13144577

    申请日：2009-01-15

    申请人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Malte Schellmann ,  Lars Thiele ,  Thomas Wirth

    发明人： Andreas Forck ,  Thomas Haustein ,  Volker Jungnickel ,  Malte Schellmann ,  Lars Thiele ,  Thomas Wirth

    IPC分类号： H04L12/26

    CPC分类号： H04L1/0026 ,  H04L1/0023 ,  H04L1/0029 ,  H04W28/24 ,  H04W52/24

    摘要： It is described a method for transmitting channel quality information between a second network element and a first network element. The method includes (a) dividing a range of possible radio channel qualities between the two network elements into a fixed number of quality classes, (b) measuring the quality of a radio channel between the two network elements, (c) selecting one quality class out of the fixed number of quality classes based on the measured quality of the radio channel, (d) transmitting from the second network element to the first network element a first channel quality information being indicative for the selected quality class, and (e) transmitting from the second network element to the first network element a second channel quality information being indicative for the measured quality within the limits of the selected quality class. It is further described the first and the second network element, which in conjugation with each other are adapted to carry out the described method.

    摘要翻译： 描述了在第二网络元件和第一网络元件之间传输信道质量信息的方法。 该方法包括：（a）将两个网络单元之间的可能无线电信道质量的范围分成固定数量的质量等级，（b）测量两个网元之间的无线电信道的质量，（c）选择一个质量等级 （d）从第二网络单元向第一网络单元发送指示所选择的质量等级的第一信道质量信息，以及（e）发送信号的质量等级的固定数量; 从所述第二网络元件到所述第一网络元件，在所选择的质量等级的限度内，指示所测量的质量的第二信道质量信息。 进一步描述了第一和第二网络元件，它们彼此共轭适于实现所描述的方法。