Apparatus and method for allocating resources based on error vector magnitude (EVM) in a broadband wireless communication system
    2.
    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。

    Hybrid duplex apparatus and method for supporting low-complexity terminal in wireless communication system
    5.
    发明申请
    Hybrid duplex apparatus and method for supporting low-complexity terminal in wireless communication system 审中-公开
    用于在无线通信系统中支持低复杂度终端的混合双工设备和方法

    公开(公告)号:US20080119145A1

    公开(公告)日:2008-05-22

    申请号:US11986449

    申请日:2007-11-21

    IPC分类号: H04B1/02

    CPC分类号: H04B1/406 H04B1/0071

    摘要: Hybrid Duplex (DUAL MODE) apparatus and method for supporting a low-complexity terminal in a wireless communication system are provided. The apparatus includes a frequency generator and controller for selecting a frequency for one of the dual mode according to a scheduling and generating a control signal for a Duplexer/Switch switching to the selected mode; and a reconfigurable radio frequency (RF) filter/mixer for up-converting an input intermediate frequency (IF) signal to an RF signal using the selected frequency. Accordingly, the DUAL MODE service of the low-complexity terminal can be supported effectively.

    摘要翻译: 提供了一种用于在无线通信系统中支持低复杂度终端的混合双工(DUAL MODE)装置和方法。 该装置包括频率发生器和控制器,用于根据调度选择双模式之一的频率,并产生用于双工器/交换机切换到选择模式的控制信号; 以及用于使用所选择的频率将输入中频(IF)信号上变频到RF信号的可重配置射频(RF)滤波器/混频器。 因此,可以有效地支持低复杂度终端的DUAL MODE业务。

    Apparatus and method for detecting a signal in a communication system using multiple antennas
    7.
    发明授权
    Apparatus and method for detecting a signal in a communication system using multiple antennas 有权
    用于在使用多个天线的通信系统中检测信号的装置和方法

    公开(公告)号:US08005170B2

    公开(公告)日:2011-08-23

    申请号:US11871598

    申请日:2007-10-12

    IPC分类号: H03D1/00

    CPC分类号: H04L1/0045 H04L1/0656

    摘要: A method and apparatus for detecting a signal in a communication system using at least two transmit antennas are provided. The signal detection method and apparatus includes selecting a symbol corresponding to a lowest branch metric from among symbols, the number of which corresponds to a modulation scheme, determining a candidate symbol by extending a process of selecting a symbol corresponding to a lowest branch metric from among the selected symbols, to a number which is less by one than the number of the transmit antennas, setting an accumulated branch metric of the candidate symbol as a threshold, removing a symbol having an accumulated branch metric higher than the threshold, and selecting, as a last received symbol, a symbol corresponding to a path having the lowest accumulated branch metric among paths selected without being removed until a last stage.

    摘要翻译: 提供了一种使用至少两个发射天线来检测通信系统中的信号的方法和装置。 信号检测方法和装置包括从符号中选择与最低分支度量相对应的符号,其数量对应于调制方案,通过扩展选择对应于最低分支度量的符号的处理来确定候选符号, 将所选择的符号设置为比发送天线的数量小一个的数字,将候选符号的累积分支度量设置为阈值,去除具有高于阈值的累积分支度量的符号,并且选择为 最后接收的符号,对应于在所选择的路径中具有最低累积分支度量的路径的符号,而不被去除直到最后阶段。

    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system
    8.
    发明申请
    Apparatus and method for detecting signal in multiple-input multiple-output (MIMO) wireless communication system 有权
    用于在多输入多输出(MIMO)无线通信系统中检测信号的装置和方法

    公开(公告)号:US20080310556A1

    公开(公告)日:2008-12-18

    申请号:US12157679

    申请日:2008-06-12

    IPC分类号: H04L27/06

    CPC分类号: H04L25/067 H04L27/38

    摘要: Receiving apparatus and method in a Multiple-Input Multiple-Output (MIMO) wireless communication system are provided. The receiver having N-ary receive antennas includes a decomposer for decomposing a channel matrix to a matrix Q and a matrix R through a QR decomposition; a detector for determining a candidate group of an n-th phase by estimating a plurality of transmit signal vectors by substituting a plurality of transmittable symbols into symbol combinations of a candidate group of a (n−1)-th phase as an n-th symbol and detecting (n+1)-th through N-th symbols using characteristics of the matrix R; a calculator for calculating square Euclidean distance values between the transmit signal vectors and a receive signal vector; and a determiner for determining the candidate group of the n-th phase by selecting transmit signal vectors having the smallest square Euclidean distance value among the transmit signal vectors.

    摘要翻译: 提供了一种多输入多输出(MIMO)无线通信系统中的接收装置和方法。 具有N元接收天线的接收机包括用于通过QR分解将信道矩阵分解为矩阵Q和矩阵R的分解器; 检测器,用于通过将第(n-1)个相位的候选组的符号组合替换为第n个第(n-1)个相位的符号组合来估计多个发送信号向量来确定第n相的候选组, 符号和检测(n + 1)到第N个符号,使用矩阵R的特性; 用于计算发射信号矢量与接收信号矢量之间的欧氏距离值的计算器; 以及确定器,用于通过选择发送信号向量中具有最小的欧氏距离值的发送信号矢量来确定第n相的候选组。

    Apparatus and method for correcting common phase error in a multi-carrier communication system
    9.
    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。

    Apparatus and method for location estimation in a wireless communication system
    10.
    发明授权
    Apparatus and method for location estimation in a wireless communication system 有权
    无线通信系统中位置估计的装置和方法

    公开(公告)号:US08374543B2

    公开(公告)日:2013-02-12

    申请号:US13242670

    申请日:2011-09-23

    IPC分类号: H04W88/02

    摘要: An apparatus and method for location estimation in a wireless communication system are provided. The method includes identifying if a received at least one signal passed through at least one repeater, when the received at least one signal is identified as having passed through at least one repeater, measuring a Base Station (BS) basis delay time and calculating a repeater basis delay time using the measured BS basis delay time, and estimating a location of the Mobile Station (MS) using the repeater basis delay time.

    摘要翻译: 提供了一种用于无线通信系统中的位置估计的装置和方法。 所述方法包括:当所接收的至少一个信号被识别为已经通过至少一个中继器时,识别接收到的至少一个信号是否经过至少一个中继器,测量基站(BS)基延迟时间并计算中继器 使用所测量的基站延迟时间的基准延迟时间,以及使用中继器基础延迟时间估计移动站(MS)的位置。