Closed loop feedback system for improved down link performance
    11.
    发明授权
    Closed loop feedback system for improved down link performance 有权
    闭环反馈系统,用于改善下行链路性能

    公开(公告)号:US07139324B1

    公开(公告)日:2006-11-21

    申请号:US09586561

    申请日:2000-06-02

    Abstract: A method includes receiving at least two space-time coded signals from an antenna system associated with a first station, determining complex channel state information based on the received space-time coded signals, and sending the complex channel state information to the first station. In an alternative embodiment, a method includes transmitting at least two space-time coded signals in respective beams of a multi-beam antenna array, measuring a channel impulse response for each space-time coded signal at a second station, and sending an indicia of a selected set of least attenuated signals from the second station to the first station. The multi-beam antenna array is associated with a first station. The beams transmit a signature code embedded in each respective space-time coded signal, and the signature codes are orthogonal so that the second station can separate and measure the channel impulse response corresponding to each space-time coded signal.

    Abstract translation: 一种方法包括从与第一站相关联的天线系统接收至少两个时空编码信号,基于接收的空时编码信号确定复信道状态信息,以及将复信道状态信息发送到第一站。 在替代实施例中,一种方法包括在多波束天线阵列的各个波束中发送至少两个空时编码信号,在第二站测量每个空间 - 时间编码信号的信道脉冲响应,并发送 从第二站到第一站的选定的一组最小衰减信号。 多波束天线阵列与第一台相关联。 波束发送嵌入在每个相应的空时编码信号中的签名代码,并且签名代码是正交的,使得第二站可以分离并测量与每个空时编码信号相对应的信道脉冲响应。

    Method for improving acoustic properties of a terminal device and a terminal device
    12.
    发明授权
    Method for improving acoustic properties of a terminal device and a terminal device 有权
    一种用于改善终端设备和终端设备的声学特性的方法

    公开(公告)号:US07136625B2

    公开(公告)日:2006-11-14

    申请号:US10160295

    申请日:2002-06-04

    CPC classification number: H01Q1/242 H04B1/3833 H04M1/03

    Abstract: The present invention relates to acoustic properties of a terminal device of a telecommunication network. To improve the capability of the terminal device to maintain the sound quality good while the distance between the speaker and the ear changes, the enclosure of the terminal device is provided with means (71, 81) for conveying the acoustic waves generated backwards by the speaker (30) of the device inside the enclosure to a cavity-like antenna space (80) intended for the antenna of the terminal device.

    Abstract translation: 本发明涉及电信网络的终端设备的声学特性。 为了提高终端设备在扬声器和耳朵之间的距离变化时保持音质的能力,终端设备的外壳设置有用于传送由扬声器向后产生的声波的装置(71,81) (30)连接到用于终端设备的天线的腔状天线空间(80)。

    Optimizing link quality by space and time interleaving
    13.
    发明授权
    Optimizing link quality by space and time interleaving 有权
    通过空间和时间交织优化链路质量

    公开(公告)号:US06959048B1

    公开(公告)日:2005-10-25

    申请号:US09857488

    申请日:1999-10-19

    Abstract: The invention relates to a method of transmitting data in a radio channel from a transmitter to a receiver, and to a transmitter and a receiver implementing the method. The method includes setting a radio channel quality requirement according to the user and system information; setting a data transfer delay requirement; determining a radio channel coherence time; channel encoding the data; selecting interleaving depth using the radio channel coherence time and the data transfer delay as decisive parameters; interleaving the channel coded data; if the radio channel quality requirement is not fulfilled, selecting at least one transmit diversity antenna besides the main antenna so that the radio channel quality requirement will be fulfilled; transmitting modulated, interleaved and channel coded data with the selected antennas.

    Abstract translation: 本发明涉及一种在无线电信道中从发射机到接收机以及实现该方法的发射机和接收机的数据传输方法。 该方法包括根据用户和系统信息设置无线电信道质量要求; 设置数据传输延迟要求; 确定无线电信道相干时间; 通道编码数据; 使用无线电信道相干时间和数据传输延迟来选择交织深度作为决定性参数; 交织通道编码数据; 如果不符合无线电信道质量要求,则选择除主天线之外的至少一个发射分集天线,以满足无线电信道质量要求; 使用所选择的天线发射调制的,交织的和信道编码的数据。

    Adaptive beam-time coding method and apparatus
    14.
    发明授权
    Adaptive beam-time coding method and apparatus 失效
    自适应波束时间编码方法和装置

    公开(公告)号:US06788661B1

    公开(公告)日:2004-09-07

    申请号:US09438547

    申请日:1999-11-12

    Abstract: A radio system includes a base station and a remote station. The base station includes a space-time encoder, an antenna system, a transmitter, a base station receiver, and a power management controller. The space-time encoder encodes a stream of symbols into first and second space-time coded signals, and the transmitter transmits the first and second space-time coded signals at respective first and second initial transmit powers from the antenna system so as to form respective first and second radiation patterns. The base station receiver receives power coefficient indicator information from the remote station, and the power management controller determines first and second adjusted transmit powers based on the respective first and second initial transmit powers and the power coefficient indicator information. In an alternative embodiment, a transmit station of a radio system includes a circuit to determine an angular power spectrum, a space-time encoder, and a transmitter. The space-time encoder encodes first and second symbols into first and second space-time coded signals, and the transmitter transmits the first and second space-time coded signals in respective first and second beams so that the first and second beams are contained within an angular spread of the angular power spectrum.

    Abstract translation: 无线电系统包括基站和远程站。 基站包括时空编码器,天线系统,发射机,基站接收机和电源管理控制器。 空时编码器将符号流编码为第一和第二空时编码信号,并且发射机以相应的第一和第二初始发射功率从天线系统发送第一和第二空时编码信号,以形成相应的 第一和第二辐射图。 基站接收器从远程站接收功率系数指示符信息,并且功率管理控制器基于各自的第一和第二初始发射功率和功率系数指示符信息来确定第一和第二调整的发射功率。 在替代实施例中,无线电系统的发射台包括确定角功率谱的电路,时空编码器和发射机。 时空编码器将第一和第二符号编码为第一和第二空时编码信号,并且发射机在第一和第二波束中发送第一和第二空间 - 时间编码信号,使得第一和第二波束包含在 角度功率谱的角度扩展。

    RAKE receiver
    15.
    发明授权
    RAKE receiver 有权
    RAKE接收机

    公开(公告)号:US06215814B1

    公开(公告)日:2001-04-10

    申请号:US09571138

    申请日:2000-05-15

    CPC classification number: H04B1/712 H04B1/7115 H04B7/0857 H04B2201/709727

    Abstract: The invention relates to a RAKE receiver of a CDMA system using IRC, the receiver receiving a radio signal by using at least two antenna branches. In accordance with the invention a RAKE finger comprises: a weighting coefficient part for forming weighting coefficients maximizing the Signal-to-Interference-and-Noise Ratio for each antenna branch; a multiplier for multiplying a pilot part, despread by a despreader in each antenna branch, by a weighting coefficient; a multiplier for multiplying a data part, despread by a despreader in each antenna branch, by a weighting coefficient; an antenna branch summer for combining the despread pilot parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one pilot signal; an antenna branch summer for combining the despread data parts, received via the separate antenna branches and multiplied by the weighting coefficient, to one data signal. In addition, the receiver comprises a RAKE finger summer for combining the data signals of the RAKE fingers operating by different delays to a sum data signal representing the received bits.

    Abstract translation: 本发明涉及使用IRC的CDMA系统的RAKE接收机,该接收机通过使用至少两个天线分支来接收无线电信号。 根据本发明,RAKE手指包括:加权系数部分,用于形成最大化每个天线分支的信号与干扰与噪声比的加权系数; 乘法器,用于将由每个天线分支中的解扩器解扩的导频部分乘以加权系数; 乘法器,用于将由每个天线分支中的解扩器解扩的数据部分乘以加权系数; 一个天线分支加法器,用于将通过分离的天线分支接收并被乘以加权系数的解扩导频部分组合成一个导频信号; 天线分支加法器,用于将通过分离的天线分支接收并被乘以加权系数的解扩数据部分组合成一个数据信号。 此外,接收机包括RAKE拨号加法器,用于将由不同延迟操作的RAKE指针的数据信号组合到表示所接收的比特的和数据信号。

    Adaptive transmission method and a base station using the method
    16.
    发明授权
    Adaptive transmission method and a base station using the method 有权
    自适应传输方法和基站采用该方法

    公开(公告)号:US08085721B2

    公开(公告)日:2011-12-27

    申请号:US12045041

    申请日:2008-03-10

    Applicant: Juha Ylitalo

    Inventor: Juha Ylitalo

    Abstract: The invention relates to a method, a base station and a computer program for selecting a spatial transmission method for a next downlink transmission in a base station. The base station can be a WiMAX, a UMTS or a 3 GPP LTE base station. According to the invention the base station makes a selection between beamforming (BF), space-time coding (STC) or MIMO for a next downlink frame. The selection is based on uplink measurements and feedback information from a particular mobile station whereto the next downlink frame is to be transmitted.

    Abstract translation: 本发明涉及一种用于在基站中为下一次下行链路传输选择空间传输方法的方法,基站和计算机程序。 基站可以是WiMAX,UMTS或3GGPP LTE基站。 根据本发明,基站在波束形成(BF),空时编码(STC)或下一个下行链路帧的MIMO之间进行选择。 该选择基于来自特定移动台的上行链路测量和反馈信息,下一个下行链路帧将被发送。

    Apparatus of Multi-Antenna Telecommunication System
    17.
    发明申请
    Apparatus of Multi-Antenna Telecommunication System 有权
    多天线通信系统设备

    公开(公告)号:US20100189055A1

    公开(公告)日:2010-07-29

    申请号:US12602583

    申请日:2007-06-28

    Applicant: Juha Ylitalo

    Inventor: Juha Ylitalo

    Abstract: An apparatus of a multi-antenna telecommunication system includes a beam forming unit configured to form at least two antenna beams, and a signal feeding unit connected to the beam forming unit and configured to feed beam-specific data streams to the beam forming unit. The beam-specific data streams are allocated to one and the same transceiver of the wireless telecommunication system, and each data stream includes independently and separately encoded data signals.

    Abstract translation: 多天线电信系统的装置包括被配置为形成至少两个天线波束的波束形成单元和连接到波束形成单元并被配置为将波束特定数据流馈送到波束形成单元的信号馈送单元。 光束专用数据流被分配给无线电信系统的同一个收发器,并且每个数据流包括独立和分别编码的数据信号。

    Simulation of Multi-Antenna Radio Channel
    18.
    发明申请
    Simulation of Multi-Antenna Radio Channel 有权
    多天线无线电信道仿真

    公开(公告)号:US20100177836A1

    公开(公告)日:2010-07-15

    申请号:US12596230

    申请日:2007-04-25

    Applicant: Juha Ylitalo

    Inventor: Juha Ylitalo

    CPC classification number: H04B17/3912

    Abstract: A radio channel simulation system comprises a plurality of input buses for receiving a beam-specific transmit signal. A transformation module transforms a channel model from antenna domain to beam domain by using a transformation algorithm and beam forming weights. The channel model represented in the beam domain is inputted into a processing module which processes the beam-specific transmit signals according to the channel model represented in the beam domain.

    Abstract translation: 无线电信道模拟系统包括用于接收波束专用发射信号的多个输入总线。 变换模块通过使用变换算法和波束形成权重将信道模型从天线域转换为波束域。 在波束域中表示的信道模型被输入到根据在波束域中表示的信道模型来处理波束特定发送信号的处理模块。

    ADAPTIVE TRANSMISSION METHOD AND A BASE STATION USING THE METHOD
    19.
    发明申请
    ADAPTIVE TRANSMISSION METHOD AND A BASE STATION USING THE METHOD 有权
    自适应传输方法和使用该方法的基站

    公开(公告)号:US20090227249A1

    公开(公告)日:2009-09-10

    申请号:US12045041

    申请日:2008-03-10

    Applicant: Juha Ylitalo

    Inventor: Juha Ylitalo

    Abstract: The invention relates to a method, a base station and a computer program for selecting a spatial transmission method for a next downlink transmission in a base station. The base station can be a WiMAX, a UMTS or a 3GPP LTE base station. According to the invention the base station makes a selection between beamforming (BF), space-time coding (STC) or MIMO for a next downlink frame. The selection is based on uplink measurements and feedback information from a particular mobile station whereto the next downlink frame is to be transmitted.

    Abstract translation: 本发明涉及一种用于在基站中为下一次下行链路传输选择空间传输方法的方法,基站和计算机程序。 基站可以是WiMAX,UMTS或3GPP LTE基站。 根据本发明,基站在波束形成(BF),空时编码(STC)或下一个下行链路帧的MIMO之间进行选择。 该选择基于来自特定移动台的上行链路测量和反馈信息,下一个下行链路帧将被发送。

    Data transmission method and arrangement
    20.
    发明授权
    Data transmission method and arrangement 有权
    数据传输方式和布置

    公开(公告)号:US07373177B2

    公开(公告)日:2008-05-13

    申请号:US11637832

    申请日:2006-12-13

    Applicant: Juha Ylitalo

    Inventor: Juha Ylitalo

    CPC classification number: H04W52/42 H01Q3/26 H04B7/0452 H04B7/0617 H04W52/346

    Abstract: A method for determining weight factors of antenna beams, the method comprising using at least one directional antenna beam implemented with an antenna array to establish a radio link, forming a radio cell with the antenna beam, dividing the radio cell into at least two different cells by dividing the antenna beam, selecting weight factors of antenna elements of the antenna array such that the antenna element specific sums of weight factors of a radio cell formed with the antenna array and corresponding weight factors of at least one, second radio cell formed with the same antenna array are at least substantially equal within predetermined limits in order to achieve a predetermined power balance between different antenna elements.

    Abstract translation: 一种用于确定天线波束的权重因子的方法,所述方法包括使用由天线阵列实现的至少一个定向天线波束建立无线电链路,与天线波束形成无线电小区,将无线电小区划分成至少两个不同的小区 通过分割天线波束,选择天线阵列的天线元件的重量因子,使得天线元件与天线阵列形成的无线电单元的加权因子的特定和和与形成有天线阵列的至少一个第二无线电单元的相应权重因子 相同的天线阵列在预定限度内至少基本相等,以便实现不同天线元件之间的预定功率平衡。

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