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17 条记录 (耗时 0.017 秒)

    OVER-THE-AIR TEST
    1.
    发明申请
    OVER-THE-AIR TEST 审中-公开
    空中测试

    公开(公告)号：US20110191090A1

    公开(公告)日：2011-08-04

    申请号：US13121208

    申请日：2008-10-06

    申请人： Pekka Kyösti ,  Petteri Heino ,  Janne Kolu ,  Marko Falck

    发明人： Pekka Kyösti ,  Petteri Heino ,  Janne Kolu ,  Marko Falck

    IPC分类号： G06G7/62

    CPC分类号： H01Q25/00 ,  H01Q21/20 ,  H04B17/3912

    摘要： A testing system comprises an emulator having a simulated radio channel for communicating therethrough with the electronic device. The testing system comprises a plurality of antenna elements coupled to an emulator which forms a beam of a signal of a path of a simulated radio channel with at least two antenna elements of the plurality of antenna elements in an anechoic chamber.

    摘要翻译： 测试系统包括具有用于与电子设备通信的模拟无线电信道的仿真器。 测试系统包括耦合到仿真器的多个天线元件，其在模拟室中形成模拟无线电信道的路径的信号与多个天线元件中的至少两个天线元件。

    Method and device for estimating SIR of a signal
    2.
    发明授权
    Method and device for estimating SIR of a signal 失效
    用于估计信号的SIR的方法和装置

    公开(公告)号：US07317751B2

    公开(公告)日：2008-01-08

    申请号：US10475775

    申请日：2001-04-24

    申请人： Pekka Kyösti

    发明人： Pekka Kyösti

    IPC分类号： H04B1/00

    CPC分类号： H04B17/336

    摘要： Disclosed is a method and a device for estimating the signal to interference ratio of a signal, in particular in a base station of a WCDMA system, providing at least a first estimating process and a second estimating process, wherein for current use with the signal a selection among said estimating processes is made in accordance with a current characteristic or current characteristics of the signal so that an estimating process is selected which is most suitable in view of the current characteristic(s) of the signal.

    摘要翻译： 公开了一种用于估计信号的信号干扰比的方法和装置，特别是在WCDMA系统的基站中，提供至少第一估计处理和第二估计处理，其中对于当前使用信号a 根据该信号的电流特性或电流特性，进行所述估计处理中的选择，从而根据信号的当前特性来选择最适合的估计处理。

    Over-the-Air Test
    5.
    发明申请
    Over-the-Air Test 有权
    空中测试

    公开(公告)号：US20140122049A1

    公开(公告)日：2014-05-01

    申请号：US13259505

    申请日：2011-07-06

    申请人： Pekka Kyösti ,  Tommi Laitinen

    发明人： Pekka Kyösti ,  Tommi Laitinen

    IPC分类号： H04B17/00 ,  H04B15/00

    CPC分类号： H04B15/00 ,  G01R29/0821 ,  H01Q3/267 ,  H04B17/0085 ,  H04B17/21 ,  H04B17/391 ,  H04B17/3911 ,  H04B17/3912

    摘要： A radio channel generator has a radio channel model predistorted on the basis of a predetermined chamber model. An emulator receives the weights of the radio channel model predistorted on the basis of the chamber model. A transmitter feeds a communication signal to the emulator. The emulator weights the communication signal with the radio channel model predistorted on the basis of the chamber model. The over-the-air antennas receive the weighted communication signal and transmit it to a device under test. The chamber model is based on a simulation or a measurement. The chamber model takes into account undesired interactions in the over-the-air chamber for cancelling them during the radio channel emulation.

    摘要翻译： 无线电信道发生器具有基于预定的小区模型预失真的无线电信道模型。 仿真器基于腔室模型接收预失真的无线电信道模型的权重。 发射机向仿真器馈送通信信号。 仿真器基于腔室模型预测的无线电信道模型对通信信号进行加权。 空中天线接收加权通信信号并将其发送到被测设备。 腔室模型基于模拟或测量。 室模型考虑到无线电通道仿真期间在空气室中的不希望的相互作用以取消它们。

    Over-the-Air Test
    6.
    发明申请
    Over-the-Air Test 有权
    空中测试

    公开(公告)号：US20120225624A1

    公开(公告)日：2012-09-06

    申请号：US13038703

    申请日：2011-03-02

    申请人： Pekka Kyösti ,  Tommi Jämsä ,  Tommi Laitinen

    发明人： Pekka Kyösti ,  Tommi Jämsä ,  Tommi Laitinen

    IPC分类号： H04B3/46

    CPC分类号： H01Q3/2605 ,  G01R29/10 ,  H01Q21/205 ,  H04B7/0617 ,  H04B17/0085 ,  H04B17/0087 ,  H04B17/391

    摘要： An apparatus forms a weight for each signal path associated with an antenna of a plurality of antennas around a test zone in an over-the-air chamber by a comparison of a desired target electric field based on a radio channel model and an electric field obtainable by the plane waves associated with the test zone, the plane waves being transmittable by the antennas and being based on at least one basis waveform in each signal path.

    摘要翻译： 一种装置通过基于无线电信道模型和可获得的电场的期望目标电场的比较，在空气室中围绕测试区域的多个天线的天线相关联的每个信号路径形成权重 通过与测试区域相关联的平面波，平面波可被天线传输并且基于每个信号路径中的至少一个基本波形。

    Error estimation method and apparatus
    8.
    发明授权
    Error estimation method and apparatus 失效

    公开(公告)号：US07028232B2

    公开(公告)日：2006-04-11

    申请号：US10067088

    申请日：2002-02-04

    申请人： Pekka Kyösti ,  Mikko Säily

    发明人： Pekka Kyösti ,  Mikko Säily

    IPC分类号： G06F11/00

    CPC分类号： H04L25/0212 ,  H04L1/20 ,  H04L25/03019

    摘要： Bit error rate or bit error probability of a received signal of a wireless telecommunication system is estimated, wherein a channel impulse response is estimated from the received signal, and the received signal is subjected to a channel equalizing operation performed on the basis of time statistics derived from the channel impulse response. Additionally, adaptive reference time domain characteristics are calculated from a weighting information obtained from the channel impulse response estimation that may be used to perform a reference channel equalizing operation for obtaining an additional output signal to be compared with the output signal of the channel equalizing operation so as to determine an estimation of the bit error rate based on the detected difference.

    Over-the air test
    10.
    发明授权
    Over-the air test 有权
    空中考试

    公开(公告)号：US08954014B2

    公开(公告)日：2015-02-10

    申请号：US13503442

    申请日：2009-10-26

    申请人： Pekka Kyösti ,  Jukka-Pekka Nuutinen ,  Tommi Jämsä

    发明人： Pekka Kyösti ,  Jukka-Pekka Nuutinen ,  Tommi Jämsä

    IPC分类号： H04B17/00 ,  G01R29/08 ,  G01R31/00

    CPC分类号： G01R29/0814 ,  G01R31/001 ,  H04B17/3911

    摘要： A testing system comprises a noise source coupled to at least two antenna elements. The noise source forms a total noise power on the basis of a total signal power received by the emulator, a gain of at least one antenna-specific channel between the emulator and the antenna elements, and a desired signal-to-noise ratio. The noise source transmits noise at the total noise power from the at least two antenna elements to the device under test wirelessly.

    摘要翻译： 测试系统包括耦合到至少两个天线元件的噪声源。 噪声源基于由仿真器接收的总信号功率，仿真器和天线元件之间的至少一个天线专用信道的增益以及期望的信噪比来形成总噪声功率。 噪声源以至少两个天线元件的总噪声功率将噪声以无线方式传输到被测设备。