Apparatus and method for compensating timing offset in broadband wireless communication system
    1.
    发明授权
    Apparatus and method for compensating timing offset in broadband wireless communication system 有权
    宽带无线通信系统补偿定时偏移的装置和方法

    公开(公告)号:US07957499B2

    公开(公告)日:2011-06-07

    申请号:US11998264

    申请日:2007-11-29

    IPC分类号: H04L7/00

    摘要: Provided is an apparatus and method for compensating a timing offset in a broadband wireless communication system. A receiving apparatus for the timing offset compensation includes a selector, a first calculator, and a second calculator. The selector groups two or more adjacent tiles into one or more tile groups and selects one or more pilot pairs, each including adjacent pilot signals, from each tile group. The first calculator calculates an average phase difference between the pilot pairs. The second calculator calculates a timing offset using the average phase difference.

    摘要翻译: 提供了一种用于补偿宽带无线通信系统中的定时偏移的装置和方法。 用于定时偏移补偿的接收装置包括选择器,第一计算器和第二计算器。 选择器将两个或更多个相邻瓦片组合成一个或多个瓦片组,并从每个瓦片组中选择一个或多个导频对,每个导频对包括相邻导频信号。 第一计算器计算导频对之间的平均相位差。 第二计算器使用平均相位差计算定时偏移。

    Apparatus and method for compensating timing offset in broadband wireless communication system
    2.
    发明申请
    Apparatus and method for compensating timing offset in broadband wireless communication system 有权
    宽带无线通信系统补偿定时偏移的装置和方法

    公开(公告)号:US20080130813A1

    公开(公告)日:2008-06-05

    申请号:US11998264

    申请日:2007-11-29

    IPC分类号: H04L7/00

    摘要: Provided is an apparatus and method for compensating a timing offset in a broadband wireless communication system. A receiving apparatus for the timing offset compensation includes a selector, a first calculator, and a second calculator. The selector groups two or more adjacent tiles into one or more tile groups and selects one or more pilot pairs, each including adjacent pilot signals, from each tile group. The first calculator calculates an average phase difference between the pilot pairs. The second calculator calculates a timing offset using the average phase difference.

    摘要翻译: 提供了一种用于补偿宽带无线通信系统中的定时偏移的装置和方法。 用于定时偏移补偿的接收装置包括选择器,第一计算器和第二计算器。 选择器将两个或更多个相邻瓦片组合成一个或多个瓦片组,并从每个瓦片组中选择一个或多个导频对,每个导频对包括相邻导频信号。 第一计算器计算导频对之间的平均相位差。 第二计算器使用平均相位差计算定时偏移。

    Apparatus and method for signal detection in multiple input multiple output wireless communication system
    3.
    发明授权
    Apparatus and method for signal detection in multiple input multiple output wireless communication system 有权
    多输入多输出无线通信系统信号检测装置及方法

    公开(公告)号:US08121210B2

    公开(公告)日:2012-02-21

    申请号:US12021794

    申请日:2008-01-29

    IPC分类号: H04B7/02 H04L1/02

    CPC分类号: H04B7/0854 H04B7/0413

    摘要: A Multiple Input Multiple Output (MIMO) wireless communication system is provided. A receiving end apparatus includes an estimator for estimating a channel between a plurality of Transmit (Tx) antennas of a transmitting end and a plurality of Receive (Rx) antennas of a receiving end; a filter for extracting a sum between interference and noise included in an Rx signal by using the estimated channel value and for computing a covariance matrix for the sum between the interference and the noise; and a detector for detecting a Tx signal by using a signal processing matrix generated from the covariance matrix.

    摘要翻译: 提供了多输入多输出(MIMO)无线通信系统。 接收端装置包括:估计器,用于估计发送端的多个发送(Tx)天线与接收端的多个接收(Rx)天线之间的信道; 滤波器,用于通过使用所估计的信道值来提取包含在Rx信号中的干扰和噪声之间的和,并且用于计算干扰和噪声之和的协方差矩阵; 以及检测器,用于通过使用从协方差矩阵生成的信号处理矩阵来检测Tx信号。

    APPARATUS AND METHOD FOR SIGNAL DETECTION IN MULTIPLE INPUT MULTIPLE OUTPUT WIRELESS COMMUNICATION SYSTEM
    4.
    发明申请
    APPARATUS AND METHOD FOR SIGNAL DETECTION IN MULTIPLE INPUT MULTIPLE OUTPUT WIRELESS COMMUNICATION SYSTEM 有权
    多输入多输出无线通信系统信号检测装置及方法

    公开(公告)号:US20080181342A1

    公开(公告)日:2008-07-31

    申请号:US12021794

    申请日:2008-01-29

    IPC分类号: H04B1/10

    CPC分类号: H04B7/0854 H04B7/0413

    摘要: A Multiple Input Multiple Output (MIMO) wireless communication system is provided. A receiving end apparatus includes an estimator for estimating a channel between a plurality of Transmit (Tx) antennas of a transmitting end and a plurality of Receive (Rx) antennas of a receiving end; a filter for extracting a sum between interference and noise included in an Rx signal by using the estimated channel value and for computing a covariance matrix for the sum between the interference and the noise; and a detector for detecting a Tx signal by using a signal processing matrix generated from the covariance matrix.

    摘要翻译: 提供了多输入多输出(MIMO)无线通信系统。 接收端装置包括:估计器,用于估计发送端的多个发送(Tx)天线与接收端的多个接收(Rx)天线之间的信道; 滤波器,用于通过使用所估计的信道值提取包含在Rx信号中的干扰和噪声之间的和,并且用于计算干扰和噪声之和的协方差矩阵; 以及检测器,用于通过使用从协方差矩阵生成的信号处理矩阵来检测Tx信号。

    Apparatus and method for rate control in a broadband wireless communication system
    5.
    发明授权
    Apparatus and method for rate control in a broadband wireless communication system 有权
    宽带无线通信系统中速率控制的装置和方法

    公开(公告)号:US08284687B2

    公开(公告)日:2012-10-09

    申请号:US12315384

    申请日:2008-12-03

    摘要: An apparatus and method for rate control in a wireless communication system are provided. The apparatus includes a preprocessor, a rate controller, a determiner, and a transmitter. The preprocessor determines feedback information on a physical layer packet using a feedback message of MAC ARQ. The rate controller updates a CQI reported from a receiver using the determined feedback information. The determiner determines an MCS using the updated CQI. The transmitter transmits data using the determined MCS.

    摘要翻译: 提供了一种用于无线通信系统中的速率控制的装置和方法。 该装置包括预处理器,速率控制器,确定器和发射器。 预处理器使用MAC ARQ的反馈消息来确定物理层分组上的反馈信息。 速率控制器使用所确定的反馈信息来更新从接收机报告的CQI。 确定器使用更新的CQI来确定MCS。 发射机使用确定的MCS发送数据。

    Apparatus and method for rate control in broadband wireless communication system
    6.
    发明申请
    Apparatus and method for rate control in broadband wireless communication system 审中-公开
    宽带无线通信系统速率控制装置及方法

    公开(公告)号:US20100182951A1

    公开(公告)日:2010-07-22

    申请号:US12657387

    申请日:2010-01-20

    IPC分类号: H04W40/00

    摘要: A method for rate control in a wireless communication system includes feedback information indicating whether a packet is received, is received from a receiver. A channel state value measured by the receiver is received. It is determined whether the same feedback information is received from the receiver successively more than a predetermined frequency. A target error rate is controlled if the same feedback information is received successively more than the predetermined frequency.

    摘要翻译: 一种无线通信系统中的速率控制方法包括:从接收机接收指示分组是否被接收的反馈信息。 接收由接收机测量的信道状态值。 确定从接收机连续地多于预定频率接收到相同的反馈信息。 如果连续地接收到超过预定频率的相同反馈信息,则控制目标错误率。

    Apparatus and method for rate control in a broadband wireless communication system
    7.
    发明申请
    Apparatus and method for rate control in a broadband wireless communication system 有权
    宽带无线通信系统中速率控制的装置和方法

    公开(公告)号:US20090141673A1

    公开(公告)日:2009-06-04

    申请号:US12315384

    申请日:2008-12-03

    IPC分类号: H04W72/04

    摘要: An apparatus and method for rate control in a wireless communication system are provided. The apparatus includes a preprocessor, a rate controller, a determiner, and a transmitter. The preprocessor determines feedback information on a physical layer packet using a feedback message of MAC ARQ. The rate controller updates a CQI reported from a receiver using the determined feedback information. The determiner determines an MCS using the updated CQI. The transmitter transmits data using the determined MCS.

    摘要翻译: 提供了一种用于无线通信系统中的速率控制的装置和方法。 该装置包括预处理器,速率控制器,确定器和发射器。 预处理器使用MAC ARQ的反馈消息来确定物理层分组上的反馈信息。 速率控制器使用所确定的反馈信息来更新从接收机报告的CQI。 确定器使用更新的CQI来确定MCS。 发射机使用确定的MCS发送数据。

    Apparatus and method for cyclic delay diversity in multiple-antenna wireless communication system
    8.
    发明授权
    Apparatus and method for cyclic delay diversity in multiple-antenna wireless communication system 有权
    多天线无线通信系统中循环延迟分集的装置和方法

    公开(公告)号:US08498353B2

    公开(公告)日:2013-07-30

    申请号:US13485568

    申请日:2012-05-31

    IPC分类号: H04B7/02

    摘要: A cyclic delay diversity (CDD) technique in a multiple-antenna broadband wireless communication system is provided. An apparatus in the multiple-antenna broadband wireless communication system includes: a controller for selecting at least one sub-carrier to which CDD is applied; at least one shifter for shifting a phase of a signal mapped to the at least one selected sub-carrier; and an operator for converting the signal, which is mapped to the at least one selected sub-carrier and whose phase is shifted, and other signals mapped to the remaining sub-carriers into time-domain signals.

    摘要翻译: 提供了一种多天线宽带无线通信系统中的循环延迟分集(CDD)技术。 多天线宽带无线通信系统中的装置包括:控制器,用于选择应用了CDD的至少一个子载波; 至少一个移位器,用于移位映射到所述至少一个所选子载波的信号的相位; 以及用于将映射到所述至少一个选择的子载波并且其相位被移位的信号以及映射到其余子载波的其他信号转换成时域信号的运算符。

    Apparatus and method for cyclic delay diversity in multiple-antenna wireless communication system
    9.
    发明申请
    Apparatus and method for cyclic delay diversity in multiple-antenna wireless communication system 有权
    多天线无线通信系统中循环延迟分集的装置和方法

    公开(公告)号:US20080181327A1

    公开(公告)日:2008-07-31

    申请号:US12002848

    申请日:2007-12-18

    IPC分类号: H04B7/02 H04L27/00

    摘要: A cyclic delay diversity (CDD) technique in a multiple-antenna broadband wireless communication system is provided. An apparatus in the multiple-antenna broadband wireless communication system includes: a controller for selecting at least one sub-carrier to which CDD is applied; at least one shifter for shifting a phase of a signal mapped to the at least one selected sub-carrier; and an operator for converting the signal, which is mapped to the at least one selected sub-carrier and whose phase is shifted, and other signals mapped to the remaining sub-carriers into time-domain signals.

    摘要翻译: 提供了一种多天线宽带无线通信系统中的循环延迟分集(CDD)技术。 多天线宽带无线通信系统中的装置包括:控制器,用于选择应用了CDD的至少一个子载波; 至少一个移位器,用于移位映射到所述至少一个所选子载波的信号的相位; 以及用于将映射到所述至少一个选择的子载波并且其相位被移位的信号以及映射到其余子载波的其他信号转换成时域信号的运算符。

    Apparatus and method for processing call in Push-To-Talk system
    10.
    发明申请
    Apparatus and method for processing call in Push-To-Talk system 审中-公开
    一键通系统处理呼叫的装置和方法

    公开(公告)号:US20060040693A1

    公开(公告)日:2006-02-23

    申请号:US11195862

    申请日:2005-08-03

    IPC分类号: H04Q7/20

    CPC分类号: H04W4/10 H04W76/45

    摘要: An apparatus and method for processing a call in a PTT system where, when an outgoing terminal transmits an invitation message for PTT service or for call setup to a predetermined incoming terminal in a dormant state, the outgoing terminal transmits the invitation message together with address information on the incoming terminal to enable a PTT server to detect the location of the incoming terminal before the invitation message is transmitted to the incoming terminal, thereby reducing the time taken to set up a PTT call.

    摘要翻译: 一种用于在PTT系统中处理呼叫的装置和方法,其中当出站终端在休眠状态下向预定入站终端发送用于PTT服务的呼叫消息或呼叫建立时,所述呼出终端与所述邀请消息一起发送地址信息 在入局终端上,使PTT服务器能够在邀请消息发送到入局终端之前检测入站的位置,从而减少建立PTT呼叫所需的时间。