Adaptive basis functions in a multicarrier communication system
    1.
    发明申请
    Adaptive basis functions in a multicarrier communication system 失效
    多载波通信系统中的自适应基函数

    公开(公告)号:US20070121741A1

    公开(公告)日:2007-05-31

    申请号:US11291232

    申请日:2005-11-30

    IPC分类号: H04K1/10

    摘要: A method for transmitting a signal uses a channel impulse response to determine a sub-carrier frequency function for at least two different basis functions. For each of the at least two sub-carrier frequency functions, a performance measure is predicted using the associated frequency function. These predicted performance measures are then stored and compared. One of the at least two basis functions are selected based on the comparing. A signal to be transmitted is converted from the frequency to the time domain using the selected basis function, and then transmitted over multiple sub-carriers via a time radio-frequency channel. Adaptive modulation, coding, bit and/or power loading may also be used in conjunction with the adaptive basis functions. A transmitter, modulator, and computer program are also described.

    摘要翻译: 用于发送信号的方法使用信道脉冲响应来确定用于至少两个不同基函数的子载波频率函数。 对于至少两个副载波频率函数中的每一个,使用相关联的频率函数来预测性能度量。 然后存储和比较这些预测的性能测量。 基于比较来选择至少两个基本功能之一。 要使用所选择的基本功能将要发送的信号从频率转换到时域,然后经由时间射频信道在多个子载波上发送。 自适应调制,编码,位和/或功率负载也可以与自适应基函数结合使用。 还描述了发射机,调制器和计算机程序。

    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmissions on forward shared radio channels
    2.
    发明授权
    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmissions on forward shared radio channels 有权
    用于调度和编码选择的方法和装置,用于支持前向共享无线电信道上的传输中的服务质量

    公开(公告)号:US06901046B2

    公开(公告)日:2005-05-31

    申请号:US10025609

    申请日:2001-12-26

    摘要: The invention is a process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS (10) to transmit data packets over a forward shared channel to a MS (12) in accordance with the invention stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.

    摘要翻译: 本发明是一种用于控制哪个MS在前向信道上接收下一个分组数据传输的选择的过程和系统,并且选择哪个多个MCS用于前向信道上的分组数据传输。 根据本发明,用于控制BTS(10)将通过前向共享信道向MS(12)发送数据分组的MCS方法的选择处理过程在BTS处存储信息,该信息包含可能 被选择以通过前向共享信道向MS发送数据分组; 从BTS处的MS接收到通过前向信道向MS发送数据分组的质量指示; 以及根据接收到的质量指示,可以用于在前向信道上发送数据分组的多个MCS方法中选择MCS方法。

    Identifiers in a Communication System
    4.
    发明申请
    Identifiers in a Communication System 有权
    通信系统中的标识符

    公开(公告)号:US20130039310A1

    公开(公告)日:2013-02-14

    申请号:US13618717

    申请日:2012-09-14

    IPC分类号: H04W72/04

    摘要: A process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS to transmit data packets over a forward shared channel to a MS stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.

    摘要翻译: 用于控制哪个MS在前向信道上接收下一个分组数据传输的选择的过程和系统,以及哪些多个MCS将用于前向信道上的分组数据传输的选择。 用于控制由BTS使用的MCS方法的选择的过程,用于通过前向共享信道向MS发送数据分组,以存储在BTS处的信息,所述信息包含可被选择以通过前向共享信道发送数据分组的MCS方法 到MS; 从BTS处的MS接收到通过前向信道向MS发送数据分组的质量指示; 以及根据接收到的质量指示,可以用于在前向信道上发送数据分组的多个MCS方法中选择MCS方法。

    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmission on forward shared radio channels
    6.
    发明授权
    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmission on forward shared radio channels 有权
    用于调度和编码选择的方法和装置,用于支持前向共享无线电信道上的传输中的服务质量

    公开(公告)号:US07561509B2

    公开(公告)日:2009-07-14

    申请号:US10898354

    申请日:2004-07-26

    IPC分类号: H04J3/04 H04J3/22

    摘要: The invention is a process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS (10) to transmit data packets over a forward shared channel to a MS (12) in accordance with the invention stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.

    摘要翻译: 本发明是一种用于控制哪个MS在前向信道上接收下一个分组数据传输的选择的过程和系统,并且选择哪个多个MCS用于前向信道上的分组数据传输。 根据本发明,用于控制BTS(10)将通过前向共享信道向MS(12)发送数据分组的MCS方法的选择处理过程在BTS处存储信息,该信息包含可能 被选择以通过前向共享信道向MS发送数据分组; 从BTS处的MS接收到通过前向信道向MS发送数据分组的质量指示; 以及根据接收到的质量指示,可以用于在前向信道上发送数据分组的多个MCS方法中选择MCS方法。

    Fourier-transform based linear equalization for CDMA downlink
    7.
    发明授权
    Fourier-transform based linear equalization for CDMA downlink 失效
    用于CDMA下行链路的基于傅里叶变换的线性均衡

    公开(公告)号:US07502312B2

    公开(公告)日:2009-03-10

    申请号:US11030662

    申请日:2005-01-05

    IPC分类号: H04J11/00

    摘要: In the reception of a CDMA signal, the receiving unit performs a simplified process of linear equalization that eliminates the need for inverting the correlation matrix. For the single antenna reception case, the correlation matrix is approximated to a good degree by a circulation matrix that is diagonalized by FFT operations, thus substituting two FFTs and one IFFT having a complexity of O(3/2 LF log LF) for the direct matrix inversion having a complexity of O(LF3). The extension of this method uses a multiple antenna reception system with oversampling.

    摘要翻译: 在CDMA信号的接收中,接收单元执行线性均衡的简化处理,消除了反相相关矩阵的需要。 对于单天线接收情况,通过由FFT操作对角化的循环矩阵来使相关矩阵近似近似,从而将具有O(3/2 LF log LF)复杂度的两个FFT和一个IFFT替换为直接 具有复杂度为O(LF3)的矩阵求逆。 该方法的扩展使用具有过采样的多天线接收系统。

    Multiscale wireless communication
    8.
    发明申请
    Multiscale wireless communication 失效
    多尺度无线通信

    公开(公告)号:US20050185732A1

    公开(公告)日:2005-08-25

    申请号:US10788188

    申请日:2004-02-25

    申请人: Giridhar Mandyam

    发明人: Giridhar Mandyam

    IPC分类号: H04B15/00 H04L27/00

    CPC分类号: H04L27/0004

    摘要: Multiscale communication, wherein time-frequency conditioning of the transmitted signal is used, is examined with respect to typical wireless communications systems, in which the modulating wavelet is matched to a specific channel condition. Compactly supported wavelet bases are employed, and based on their parameterization a wavelet is selected that best characterizes the wireless channel conditions.

    摘要翻译: 对于其中调制小波与特定信道条件匹配的典型无线通信系统来检查其中使用发射信号的时间频率调节的多尺度通信。 采用紧凑支持的小波基,并且基于它们的参数化,选择最能表征无线信道条件的小波。

    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmisssions on forward shared radio channels
    10.
    发明申请
    Method and apparatus for scheduling and modulation and coding selection for supporting quality of service in transmisssions on forward shared radio channels 有权
    用于调度和编码选择的方法和装置,用于支持前向共享无线电信道上的传输中的服务质量

    公开(公告)号:US20050007968A1

    公开(公告)日:2005-01-13

    申请号:US10898354

    申请日:2004-07-26

    摘要: The invention is a process and system for controlling selection of which MS is to receive the next packet data transmission on a forward channel and selection of which plural MCS is to be used for the packet data transmissions on the forward channel. A process for controlling selection of MCS method to be used by a BTS (10) to transmit data packets over a forward shared channel to a MS (12) in accordance with the invention stores information at the BTS, the information containing MCS methods which may be selected to transmit data packets over the forward shared channel to the MS; receiving from the MS at the BTS a quality indication of transmission of data packets over the forward channel to the MS; and selecting a MCS method from a plurality of MCS methods which may be used to transmit data packets on the forward channel dependent upon the received quality indication.

    摘要翻译: 本发明是一种用于控制哪个MS在前向信道上接收下一个分组数据传输的选择的过程和系统,并且选择哪个多个MCS用于前向信道上的分组数据传输。 根据本发明,用于控制BTS(10)将通过前向共享信道向MS(12)发送数据分组的MCS方法的选择处理过程在BTS处存储信息,该信息包含可能 被选择以通过前向共享信道向MS发送数据分组; 从BTS处的MS接收到通过前向信道向MS发送数据分组的质量指示; 以及根据接收到的质量指示,可以用于在前向信道上发送数据分组的多个MCS方法中选择MCS方法。