利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

180 条记录 (耗时 0.028 秒)

    Apparatus and method for compensating for phase error in wireless communication system
    2.
    发明授权
    Apparatus and method for compensating for phase error in wireless communication system 有权
    无线通信系统相位误差补偿装置及方法

    公开(公告)号：US08483106B2

    公开(公告)日：2013-07-09

    申请号：US12766109

    申请日：2010-04-23

    申请人： Sung-Soo Hwang ,  Seung-Hee Han ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Sung-Yoon Jung

    发明人： Sung-Soo Hwang ,  Seung-Hee Han ,  Sang-Boh Yun ,  Joo-Hyun Lee ,  Sung-Yoon Jung

    IPC分类号： H04B7/14 ,  H04B3/36 ,  H04B1/60

    CPC分类号： H04L27/2675 ,  H04B7/155 ,  H04B17/345 ,  H04L25/0212 ,  H04L27/2663 ,  H04L27/2671

    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 detecting signal based on QR-decomposition in multiple input multiple output wireless communication system
    5.
    发明授权
    Apparatus and method for detecting signal based on QR-decomposition in multiple input multiple output wireless communication system 有权
    在多输入多输出无线通信系统中基于QR分解检测信号的装置和方法

    公开(公告)号：US08345806B2

    公开(公告)日：2013-01-01

    申请号：US12154954

    申请日：2008-05-28

    申请人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

    发明人： Sung-Yoon Jung ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-Ho Lee ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim ,  Ki-Hwan Jeon

    IPC分类号： H04B7/10

    CPC分类号： H04L25/0206

    摘要： An apparatus and a method are provided for detecting N number of TX signals in a MIMO wireless communication system. The apparatus includes an RF processor, a channel estimator, and a signal detector. The RF processor converts signals, received through multiple antennas, into baseband signals. The channel estimator estimates channel information of the respective antennas by using the received signals. The signal detector arranges the baseband signals of the respective antennas on the basis of the channel information, calculates a threshold value of each stage, and selects symbols with a cumulative metric smaller than or equal to the threshold value as candidates at each stage, to detect a TX signal vector with N number of symbols.

    摘要翻译： 提供了一种用于在MIMO无线通信系统中检测N个TX信号的装置和方法。 该装置包括RF处理器，信道估计器和信号检测器。 RF处理器将通过多个天线接收的信号转换为基带信号。 信道估计器通过使用所接收的信号来估计各个天线的信道信息。 信号检测器基于信道信息布置各个天线的基带信号，计算每一级的阈值，并且选择具有小于或等于阈值的累积度量的符号作为每个级的候选，以检测 具有N个符号的TX信号向量。

    Apparatus and method for allocating frequency resource in a communication system
    6.
    发明授权
    Apparatus and method for allocating frequency resource in a communication system 有权
    在通信系统中分配频率资源的装置和方法

    公开(公告)号：US08195174B2

    公开(公告)日：2012-06-05

    申请号：US12061993

    申请日：2008-04-03

    申请人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Jong-Hyeuk Lee ,  Dae-Sik Hong ,  Tae-Hoon Kwon

    发明人： Joo-Hyun Lee ,  Sang-Boh Yun ,  Jong-Hyeuk Lee ,  Dae-Sik Hong ,  Tae-Hoon Kwon

    IPC分类号： H04W72/00

    CPC分类号： H04W52/346 ,  H04W72/048

    摘要： A method and apparatus for allocating resources for a mobile station in a communication system is provided. The method includes determining if a mobile station within a cell is located in one of a first region corresponding to a cell center, a third region corresponding to a cell edge, and a second region corresponding to an area between the first and third regions, allocating frequency resources within an entire frequency band to the mobile station when the mobile station is located in the first region, wherein the entire frequency band comprises at least a first frequency band and a second frequency band, allocating frequency resources within the first frequency band to the mobile station when the mobile station is located in the third region, and allocating frequency resources within the second frequency band to the mobile station when the mobile station is located in the second region.

    摘要翻译： 提供了一种在通信系统中为移动台分配资源的方法和装置。 该方法包括：确定小区内的移动台是否位于对应于小区中心的第一区域，对应于小区边缘的第三区域和对应于第一和第三区域之间的区域的第二区域中的一个中，分配 当所述移动站位于所述第一区域中时，所述整个频带内的频率资源到所述移动站，其中，所述整个频带包括至少第一频带和第二频带，将所述第一频带内的频率资源分配给所述第一频带 当所述移动站位于所述第三区域时，将所述第二频带内的频率资源分配给所述移动站。

    System and method for fast paging in a wireless mobile communication system based on internet protocol
    10.
    发明授权
    System and method for fast paging in a wireless mobile communication system based on internet protocol 有权
    基于互联网协议的无线移动通信系统中快速寻呼的系统和方法

    公开(公告)号：US07986677B2

    公开(公告)日：2011-07-26

    申请号：US11510086

    申请日：2006-08-25

    申请人： Chi-Hyun Park ,  Sang-Boh Yun ,  Jung-Hoon Cheon ,  Ok-Seon Lee

    发明人： Chi-Hyun Park ,  Sang-Boh Yun ,  Jung-Hoon Cheon ,  Ok-Seon Lee

    IPC分类号： H04Q7/20

    CPC分类号： H04L29/12311 ,  H04L61/2084 ,  H04W60/04 ,  H04W68/00 ,  H04W80/04

    摘要： A system is provided for performing location update in a wireless mobile communication system that uses an Internet protocol (IP) address and is classified as at least one paging group. A serving base station (BS) sends a message including an identifier of a paging group where the serving BS is located, determines whether there is a change in IP subnet of a mobile station (MS) upon receipt of a location update request from the MS, and upon recognizing a change in IP subnet of the MS, stores information on a new IP subnet and notifies the change in the IP subnet to the MS. Upon detecting a need for location update, the MS sends a request for location update to a serving BS, and receives a location update success notification and an allocated temporary IP address from the serving BS.

    摘要翻译： 提供一种用于在使用因特网协议（IP）地址并被分类为至少一个寻呼组的无线移动通信系统中执行位置更新的系统。 服务基站（BS）发送包括服务BS所在的寻呼组的标识符的消息，在接收到来自MS的位置更新请求时确定移动站（MS）的IP子网是否发生变化 并且在识别到MS的IP子网的变化时，存储关于新的IP子网的信息，并将该IP子网中的改变通知给MS。 在检测到对位置更新的需要时，MS向服务BS发送位置更新请求，并从服务BS接收位置更新成功通知和分配的临时IP地址。