Method and equipment for regulating dynamically an average area of a channel estimation
    1.
    发明授权
    Method and equipment for regulating dynamically an average area of a channel estimation 有权
    用于动态调节信道估计的平均面积的方法和设备

    公开(公告)号:US07376176B2

    公开(公告)日:2008-05-20

    申请号:US10488387

    申请日:2002-09-03

    IPC分类号: H04B1/00 H03D1/04

    摘要: The present invention relates to a method and an apparatus for adjusting an average interval of channel estimation dynamically based on Doppler-shift. The method comprises the steps of estimating Doppler-shift by using level cross rate (LCR) according to differently moving speeds of mobile terminals, determining the optimal average interval of channel estimation based on the relationship between the existing Doppler-shift and the optimal average interval of channel estimation, dynamically adjusting the average interval of channel estimation according to the determined the optimal average interval of channel estimation to make the coherent receiver obtain the optimal estimation performance at different moving speeds. The apparatus of the present invention comprises a channel estimation module, a valid/strongest finger selection module, a RAKE demodulation and combining module, a RAKE output decision module, an LCR detection and Doppler-shift estimation module, a Gaussian noise power estimation module, a strongest path signal power estimation module, and an optimal average interval calculation module.

    摘要翻译: 本发明涉及一种基于多普勒频移动态地调整信道估计的平均间隔的方法和装置。 该方法包括以下步骤:根据移动终端不同移动速度的等级交叉速率(LCR)估计多普勒频移,基于现有多普勒频移与最佳平均间隔之间的关系确定信道估计的最佳平均间隔 根据确定信道估计的最优平均间隔动态调整信道估计的平均间隔,使相干接收机在不同移动速度下获得最佳估计性能。 本发明的装置包括信道估计模块,有效/最强的手指选择模块,RAKE解调和组合模块,RAKE输出判定模块,LCR检测和多普勒频移估计模块,高斯噪声功率估计模块, 最强路径信号功率估计模块和最优平均间隔计算模块。

    Efficient CQICH transport format
    2.
    发明授权
    Efficient CQICH transport format 有权
    高效的CQICH传输格式

    公开(公告)号:US08315643B2

    公开(公告)日:2012-11-20

    申请号:US12057678

    申请日:2008-03-28

    IPC分类号: H04W72/00

    摘要: An efficient channel quality indicator channel (CQICH) transport method and system are disclosed. The CQICH transport method defines five types of CQI transport formats, to cover known cases of CQI feedback. The CQICH transport method further defines the format of transportation, which enables any of the five types of CQI transport formats to be transmitted.

    摘要翻译: 公开了一种高效的信道质量指示信道(CQICH)传输方法和系统。 CQICH传输方法定义了CQI传输格式的五种类型,以覆盖CQI反馈的已知情况。 CQICH传输方法进一步定义了传输格式,可以传输五种类型的CQI传输格式中的任何一种。

    Determination of frequency offset
    3.
    发明授权
    Determination of frequency offset 有权
    频率偏移的确定

    公开(公告)号:US09148265B2

    公开(公告)日:2015-09-29

    申请号:US13645644

    申请日:2010-04-12

    申请人: Zhangyong Ma

    发明人: Zhangyong Ma

    IPC分类号: H04L5/00 H04L27/26

    摘要: A method in a sending system entity for estimating a frequency offset associated with a data transfer from a receiving system entity in a mobile communication network is disclosed. The method includes extracting user data associated with a predefined user from the transferred data and transforming the extracted user data into a time domain. The method also includes estimating a resource symbol phase offset, θ1, between two resource symbols representing the same user from the transformed user data and estimating a resource element phase offset, θ2, between two resource blocks occupied by the same user. Additionally, the method includes estimating a frequency offset based on θ1 and θ2.

    摘要翻译: 公开了一种发送系统实体中用于估计与来自移动通信网络中的接收系统实体的数据传输相关联的频率偏移的方法。 该方法包括从传送的数据提取与预定义用户相关联的用户数据,并将所提取的用户数据变换为时域。 该方法还包括估计资源符号相位偏移量; 1,在经变换的用户数据表示相同用户的两个资源符号之间,并估计资源元素相位偏移量; 2,在同一用户占用的两个资源块之间。 另外,该方法包括基于&thetas; 1和&thetas估计频率偏移; 2。

    Open loop MU-MIMO
    4.
    发明授权
    Open loop MU-MIMO 有权
    开环MU-MIMO

    公开(公告)号:US07907677B2

    公开(公告)日:2011-03-15

    申请号:US11864932

    申请日:2007-09-29

    IPC分类号: H04B7/02

    摘要: A unified open loop single-user/multiple-user multiple-input-multiple-output (MIMO) system and method are disclosed. The system and method operate without use of channel state information feedback. Instead, the method utilizes channel quality indicator feedback to schedule users to spatial resource blocks. Both symmetric multi-user MIMO schemes (like 2×2 and 4×4) and asymmetric multi-user MIMO schemes are considered. CQI feedback and reduction proposals are also introduced. The method may be used in a proposed network topology.

    摘要翻译: 公开了一种统一的开环单用户/多用户多输入多输出(MIMO)系统和方法。 系统和方法操作而不使用信道状态信息反馈。 相反,该方法利用信道质量指示符反馈来将用户调度到空间资源块。 考虑了对称多用户MIMO方案(如2×2和4×4)和非对称多用户MIMO方案。 还引入了CQI反馈和减少建议。 该方法可以用于所提出的网络拓扑中。

    Method and apparatus for estimating a doppler frequency
    5.
    发明授权
    Method and apparatus for estimating a doppler frequency 有权
    用于估计多普勒频率的方法和装置

    公开(公告)号:US08811551B2

    公开(公告)日:2014-08-19

    申请号:US13583947

    申请日:2010-03-11

    申请人: Zhangyong Ma

    发明人: Zhangyong Ma

    CPC分类号: H04L27/0014 H04L25/0212

    摘要: A method for supporting wireless communication over a physical channel in a mobile broadband system includes providing an estimate of the channel and obtaining a channel autocorrelation function of a channel impulse response of the channel. The method also includes expressing the channel autocorrelation function as a zero order Bessel function and applying Taylor expansion to the zero order Bessel function. Additionally, the method includes performing derivation of the channel autocorrelation function to obtain an estimate of the maximum Doppler frequency and using the obtained estimate of the maximum Doppler frequency to compensate for a current Doppler effect in a receiver receiving the signals.

    摘要翻译: 支持移动宽带系统中的物理信道上的无线通信的方法包括提供信道的估计并获得信道的信道脉冲响应的信道自相关函数。 该方法还包括将信道自相关函数表示为零阶贝塞尔函数,并将泰勒展开应用于零阶贝塞尔函数。 此外,该方法包括执行信道自相关函数的导出以获得最大多普勒频率的估计,并且使用所获得的最大多普勒频率的估计来补偿接收信号的接收机中的当前多普勒效应。

    Apparatuses and Methods for Detecting a Group Delay in a Communication System
    6.
    发明申请
    Apparatuses and Methods for Detecting a Group Delay in a Communication System 有权
    用于检测通信系统中组延迟的装置和方法

    公开(公告)号:US20120250493A1

    公开(公告)日:2012-10-04

    申请号:US13503875

    申请日:2009-10-27

    IPC分类号: H04W72/04 H04J13/22

    摘要: The exemplary embodiments of the present invention relate to a transmission part (500), to a receiver part (600), to a transceiver comprising the transmission and receiver parts, to a radio base station comprising the transceiver, to a method in the transmission part (500) and to a method in a receiver part (600). According to the embodiments of the present invention, the transmission part (500) is configured to generate calibration sequences; process the sequences to determine a resulting calibration signal prior to transmission to a receiver part for enabling the receiver part to detect group delay of the received resulting calibration signal for calibration of the transceiver and/or of the radio base station in a wideband communications system.

    摘要翻译: 本发明的示例性实施例涉及一种发送部分(500),其包括发射机和接收机部分的接收机部分(600)到包括所述收发器的无线电基站的收发机,涉及传输部分 (500)和接收机部分(600)中的方法。 根据本发明的实施例,发送部分(500)被配置为产生校准序列; 处理序列以在发送到接收机部分之前确定所得到的校准信号,以使得接收机部分能够检测所接收的所得到的校准信号的组延迟,以便在宽带通信系统中对收发器和/或无线电基站进行校准。

    EFFICIENT CQICH TRANSPORT FORMAT
    7.
    发明申请
    EFFICIENT CQICH TRANSPORT FORMAT 有权
    高效的运输格式

    公开(公告)号:US20090041138A1

    公开(公告)日:2009-02-12

    申请号:US12057678

    申请日:2008-03-28

    IPC分类号: H04L27/28

    摘要: An efficient channel quality indicator channel (CQICH) transport method and system are disclosed. The CQICH transport method defines five types of CQI transport formats, to cover known cases of CQI feedback. The CQICH transport method further defines the format of transportation, which enables any of the five types of CQI transport formats to be transmitted.

    摘要翻译: 公开了一种高效的信道质量指示信道(CQICH)传输方法和系统。 CQICH传输方法定义了CQI传输格式的五种类型,以覆盖CQI反馈的已知情况。 CQICH传输方法进一步定义了传输格式,可以传输五种类型的CQI传输格式中的任何一种。

    Apparatuses and methods for detecting a group delay in a communication system
    8.
    发明授权
    Apparatuses and methods for detecting a group delay in a communication system 有权
    用于检测通信系统中的组延迟的装置和方法

    公开(公告)号:US08947997B2

    公开(公告)日:2015-02-03

    申请号:US13503875

    申请日:2009-10-27

    摘要: The exemplary embodiments of the present invention relate to a transmission part (500), to a receiver part (600), to a transceiver comprising the transmission and receiver parts, to a radio base station comprising the transceiver, to a method in the transmission part (500) and to a method in a receiver part (600). According to the embodiments of the present invention, the transmission part (500) is configured to generate calibration sequences; process the sequences to determine a resulting calibration signal prior to transmission to a receiver part for enabling the receiver part to detect group delay of the received resulting calibration signal for calibration of the transceiver and/or of the radio base station in a wideband communications system.

    摘要翻译: 本发明的示例性实施例涉及一种发送部分(500),其包括发射机和接收机部分的接收机部分(600)到包括所述收发器的无线电基站的收发机,涉及传输部分 (500)和接收机部分(600)中的方法。 根据本发明的实施例,发送部分(500)被配置为产生校准序列; 处理序列以在发送到接收机部分之前确定所得到的校准信号,以使得接收机部分能够检测所接收的所得到的校准信号的组延迟,以便在宽带通信系统中对收发器和/或无线电基站进行校准。

    DETERMINATION OF FREQUENCY OFFSET
    9.
    发明申请
    DETERMINATION OF FREQUENCY OFFSET 有权
    频率偏移的确定

    公开(公告)号:US20140036860A1

    公开(公告)日:2014-02-06

    申请号:US13645644

    申请日:2010-04-12

    申请人: Zhangyong Ma

    发明人: Zhangyong Ma

    IPC分类号: H04L5/00

    摘要: A method in a sending system entity for estimating a frequency offset associated with a data transfer from a receiving system entity in a mobile communication network is disclosed. The method includes extracting user data associated with a predefined user from the transferred data and transforming the extracted user data into a time domain. The method also includes estimating a resource symbol phase offset, θ1, between two resource symbols representing the same user from the transformed user data and estimating a resource element phase offset, θ2, between two resource blocks occupied by the same user. Additionally, the method includes estimating a frequency offset based on θ1 and θ2.

    摘要翻译: 公开了一种发送系统实体中用于估计与来自移动通信网络中的接收系统实体的数据传输相关联的频率偏移的方法。 该方法包括从传送的数据提取与预定义用户相关联的用户数据,并将所提取的用户数据变换为时域。 该方法还包括从经变换的用户数据估计表示相同用户的两个资源符号之间的资源符号相位偏移量θ1,并且估计由相同用户占用的两个资源块之间的资源元素相位偏移θ2。 另外,该方法包括基于θ1和θ2估计频率偏移。

    OPEN LOOP MU-MIMO
    10.
    发明申请
    OPEN LOOP MU-MIMO 有权
    开环MU-MIMO

    公开(公告)号:US20090041148A1

    公开(公告)日:2009-02-12

    申请号:US11864932

    申请日:2007-09-29

    IPC分类号: H04L1/02

    摘要: A unified open loop single-user/multiple-user multiple-input-multiple-output (MIMO) system and method are disclosed. The system and method operate without use of channel state information feedback. Instead, the method utilizes channel quality indicator feedback to schedule users to spatial resource blocks. Both symmetric multi-user MIMO schemes (like 2×2 and 4×4) and asymmetric multi-user MIMO schemes are considered. CQI feedback and reduction proposals are also introduced. The method may be used in a proposed network topology.

    摘要翻译: 公开了一种统一的开环单用户/多用户多输入多输出(MIMO)系统和方法。 系统和方法操作而不使用信道状态信息反馈。 相反,该方法利用信道质量指示符反馈来将用户调度到空间资源块。 考虑了对称多用户MIMO方案(如2x2和4x4)和非对称多用户MIMO方案。 还引入了CQI反馈和减少建议。 该方法可以用于所提出的网络拓扑中。