APPARATUS AND METHOD FOR COMPENSATING FOR PHASE ERROR IN WIRELESS COMMUNICATION SYSTEM
    41.
    发明申请
    APPARATUS AND METHOD FOR COMPENSATING FOR PHASE ERROR IN WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中补偿相位错误的装置和方法

    公开(公告)号:US20100271932A1

    公开(公告)日:2010-10-28

    申请号:US12766109

    申请日:2010-04-23

    IPC分类号: G06F11/07 H04L27/28

    摘要: An apparatus and method for compensating for a phase error in a wireless communication system are provided. The apparatus includes a reception modem, a transmission modem, a Common Phase Error (CPE) compensator, a first channel estimator, a phase compensator, and a second channel estimator. The reception modem demodulates and decodes a signal received. The transmission modem encodes and modulates a signal for transmission. The CPE compensator compensates for phase errors of at least two symbols constituting a signal. The first channel estimator estimates channels for respective bursts. The phase compensator compares phases for the channels for the respective bursts with each other and compensates for a phase difference between at least two bursts. The second channel estimator estimates an interference channel.

    摘要翻译: 提供一种用于补偿无线通信系统中的相位误差的装置和方法。 该装置包括接收调制解调器,传输调制解调器,公共相位误差(CPE)补偿器,第一信道估计器,相位补偿器和第二信道估计器。 接收调制解调器对接收的信号进行解调和解码。 传输调制解调器对信号进行编码和调制以进行传输。 CPE补偿器补偿构成信号的至少两个符号的相位误差。 第一信道估计器估计各个突发的信道。 相位补偿器将各个脉冲串的通道的相位彼此进行比较,并补偿至少两个脉冲串之间的相位差。 第二信道估计器估计干扰信道。

    Apparatus and method for correcting common phase error in a multi-carrier communication system
    42.
    发明授权
    Apparatus and method for correcting common phase error in a multi-carrier communication system 有权
    一种用于校正多载波通信系统中的共同相位误差的装置和方法

    公开(公告)号:US07792219B2

    公开(公告)日:2010-09-07

    申请号:US11862710

    申请日:2007-09-27

    IPC分类号: H03K9/00 H04L27/00

    摘要: An apparatus and method for correcting a CPE in a signal reception apparatus of a multi-carrier communication system are provided, in which an auto-correlation of a reference signal estimated from a reference symbol among a plurality of symbols is detected, a cross-correlation between a channel estimate of the reference signal and an actual received reference signal is detected, and the CPE of the remaining symbols except the reference symbol is corrected using the auto-correlation and the cross-correlation.

    摘要翻译: 提供了一种用于在多载波通信系统的信号接收装置中校正CPE的装置和方法,其中检测到从多个符号之中的参考符号估计的参考信号的自相关,互相关 检测参考信号的信道估计与实际接收的参考信号之间,并且使用自相关和互相关校正除参考符号之外的其余符号的CPE。

    Method and apparatus for estimating location to support location based service of terminal in mobile communication system
    46.
    发明申请
    Method and apparatus for estimating location to support location based service of terminal in mobile communication system 审中-公开
    用于估计位置以支持移动通信系统中终端的基于位置的服务的方法和装置

    公开(公告)号:US20090160710A1

    公开(公告)日:2009-06-25

    申请号:US12317224

    申请日:2008-12-19

    IPC分类号: G01S1/24

    CPC分类号: G01S5/10

    摘要: A method and an apparatus for estimating a location to support a location based service of a terminal in a mobile communication system are provided. The method includes receiving first reference signals from three base stations, calculating TDOAs, and solving a first equation using the TDOAs based on the first reference signals; when a solution of determining a location of a terminal based on the first equation is real or imaginary values, receiving second reference signals from the three base stations, calculating TDOAs, and solving a second equation using the TDOAs based on the second reference signals; and when a solution of determining the location of the terminal based on the second equation is real or imaginary values, determining the location of the terminal based on a relation between the first equation and the second equation.

    摘要翻译: 提供了一种用于估计在移动通信系统中支持终端的基于位置的服务的位置的方法和装置。 该方法包括从三个基站接收第一参考信号,计算TDOA,以及基于第一参考信号求解使用TDOA的第一方程; 当基于第一方程确定终端的位置的解决方案是实数或虚数值时,从三个基站接收第二参考信号,计算TDOA,并且基于第二参考信号使用TDOA来求解第二方程; 并且当基于第二方程确定终端的位置的解决方案是实数或虚数值时,基于第一方程和第二方程之间的关系来确定终端的位置。

    Apparatus and method for canceling interference in multi-antenna system
    47.
    发明申请
    Apparatus and method for canceling interference in multi-antenna system 有权
    消除多天线系统干扰的装置和方法

    公开(公告)号:US20090147890A1

    公开(公告)日:2009-06-11

    申请号:US12315342

    申请日:2008-12-02

    IPC分类号: H04L1/02 H03D1/00

    摘要: An apparatus and a method for canceling interference based on Maximum Likelihood (ML) at a receiver of a multi-antenna system are provided. The method includes estimating a channel using a signal received over one or more receiver antennas; generating one or more weights using the estimated channel to cancel interference; detecting a candidate symbol having the shortest Euclidean distance through Maximum Likelihood using a first weight; and soft-decoding the candidate symbol using a second weight. Therefore, by receiving the signal based on the ML under the interference, the system capacity can be increased and the reception performance can be enhanced.

    摘要翻译: 提供了一种用于在多天线系统的接收机处基于最大似然(ML)消除干扰的装置和方法。 该方法包括使用在一个或多个接收机天线上接收的信号来估计信道; 使用所估计的信道生成一个或多个权重以消除干扰; 使用第一权重通过最大似然检测具有最短欧几里德距离的候选符号; 以及使用第二权重对候选符号进行软解码。 因此,通过在干扰下接收基于ML的信号,可以提高系统容量并提高接收性能。

    APPARATUS AND METHOD FOR DETECTING SIGNAL IN MULTI-ANTENNA SYSTEM
    48.
    发明申请
    APPARATUS AND METHOD FOR DETECTING SIGNAL IN MULTI-ANTENNA SYSTEM 有权
    用于在多天线系统中检测信号的装置和方法

    公开(公告)号:US20090116590A1

    公开(公告)日:2009-05-07

    申请号:US12259874

    申请日:2008-10-28

    IPC分类号: H04L27/06

    摘要: A method and an apparatus for detecting a signal in a multi-antenna system using a spatial multiplexing are provided. The apparatus includes at least one antenna for receiving a signal, a channel estimator for estimating a channel using the received signal, a detector for calculating multiplication values commonly used to determine a Euclidean distance using the receive signal and channel information and for detecting a transmitted signal by calculating Euclidean distances of one or more candidate symbols using the receive signal and the determined multiplication values and a decoder for demodulating and decoding the detected signal. Hence, the computational complexity of the signal detection can be mitigated.

    摘要翻译: 提供了一种使用空间复用来检测多天线系统中的信号的方法和装置。 该装置包括用于接收信号的至少一个天线,用于使用接收信号估计信道的信道估计器,用于计算通常用于使用接收信号和信道信息确定欧几里德距离的乘法值并用于检测发送信号的检测器 通过使用接收信号和所确定的乘法值来计算一个或多个候选符号的欧几里得距离,以及解码器,用于解调和解码检测到的信号。 因此,可以减轻信号检测的计算复杂度。

    Apparatus and method for allocating resources based on error vector magnitude (EVM) in a broadband wireless communication system
    49.
    发明申请
    Apparatus and method for allocating resources based on error vector magnitude (EVM) in a broadband wireless communication system 有权
    一种宽带无线通信系统中基于误差矢量幅度(EVM)分配资源的装置和方法

    公开(公告)号:US20090075659A1

    公开(公告)日:2009-03-19

    申请号:US12283803

    申请日:2008-09-16

    IPC分类号: H04Q7/20 H04M1/00

    CPC分类号: H04W72/0453

    摘要: A resource allocation in a broadband wireless communication system is provided. An apparatus for a base station in a broadband wireless communication system includes a manager for managing resources by dividing the resources into a plurality of regions based on a maximum supportable error vector magnitude (EVM) in a frequency axis; and an allocator for allocating resources of a region other than a first region, the region having the smallest maximum supportable EVM, to a service to which a maximum modulation and coding scheme (MCS) level is not applied.

    摘要翻译: 提供宽带无线通信系统中的资源分配。 一种用于宽带无线通信系统中的基站的装置,包括:管理器,用于通过基于频率轴上的最大可支持误差矢量幅值(EVM)将所述资源划分为多个区域来管理资源; 以及分配器,用于向不应用最大调制和编码方案(MCS)级别的服务分配除了第一区域之外的区域的资源,所述区域具有最小可支持EVM的区域。