System and method for controlling sleep mode operation in a communication system
    1.
    发明申请
    System and method for controlling sleep mode operation in a communication system 有权
    用于在通信系统中控制睡眠模式操作的系统和方法

    公开(公告)号:US20080153426A1

    公开(公告)日:2008-06-26

    申请号:US12004568

    申请日:2007-12-21

    IPC分类号: H04B7/26

    摘要: A method for controlling a sleep mode operation by a mobile station (MS) in a communication system. In the sleep mode operation control method, after entering a sleep mode, the MS transitions to an awake state in a listening interval. When there is data to transmit or receive to/from a base station (BS) in the awake state, the MS causes a neutral interval following the listening interval to transition to the awake state, and transmits or receives the data. The neutral interval is an interval where transition to the awake state and sleep state is available according to the data transmission/reception of the MS operating in the sleep mode.

    摘要翻译: 一种用于在通信系统中由移动台(MS)控制睡眠模式操作的方法。 在睡眠模式操作控制方法中,在进入睡眠模式之后,MS在监听间隔中转换到唤醒状态。 当存在用于在唤醒状态下从基站(BS)发送或接收的数据时,MS使监听间隔之后的中间区间转换到唤醒状态,并发送或接收数据。 中性间隔是根据在睡眠模式下操作的MS的数据发送/接收,可以转换到唤醒状态和休眠状态的间隔。

    System and method for controlling sleep mode operation in a communication system
    2.
    发明授权
    System and method for controlling sleep mode operation in a communication system 有权
    用于在通信系统中控制睡眠模式操作的系统和方法

    公开(公告)号:US07953458B2

    公开(公告)日:2011-05-31

    申请号:US12004568

    申请日:2007-12-21

    IPC分类号: H04M1/00 H04B1/38

    摘要: A method for controlling a sleep mode operation by a mobile station (MS) in a communication system. In the sleep mode operation control method, after entering a sleep mode, the MS transitions to an awake state in a listening interval. When there is data to transmit or receive to/from a base station (BS) in the awake state, the MS causes a neutral interval following the listening interval to transition to the awake state, and transmits or receives the data. The neutral interval is an interval where transition to the awake state and sleep state is available according to the data transmission/reception of the MS operating in the sleep mode.

    摘要翻译: 一种用于在通信系统中由移动台(MS)控制睡眠模式操作的方法。 在睡眠模式操作控制方法中,在进入睡眠模式之后,MS在监听间隔中转换到唤醒状态。 当存在用于在唤醒状态下从基站(BS)发送或接收的数据时,MS使监听间隔之后的中间区间转换到唤醒状态,并发送或接收数据。 中性间隔是根据在睡眠模式下操作的MS的数据发送/接收,可以转换到唤醒状态和休眠状态的间隔。

    STBC scheme using MMSE decision in a non quasi-static channel
    3.
    发明申请
    STBC scheme using MMSE decision in a non quasi-static channel 审中-公开
    STBC方案在非准静态信道中使用MMSE决策

    公开(公告)号:US20060182208A1

    公开(公告)日:2006-08-17

    申请号:US11056757

    申请日:2005-02-11

    IPC分类号: H04B7/10 H04B7/02

    摘要: The present invention provide a space time block codes (STBC) scheme, where a received signal is filtered by using a minimum mean square error (MMSE) filter, and where channel symbols are individually decoded and converted into bit information, so that an mean square error (MSE) can be minimized by using a linear superposition form applicable to the non quasi-static channel environment as well as a quasi-static channel environment. The present invention provides an STBC scheme using a MMSE filter obtained in a real linear representation method, so that transmitted data can be recovered without loss thereof even in a case where a speed of a mobile station is high.

    摘要翻译: 本发明提供一种空间时间块码(STBC)方案,其中通过使用最小均方误差(MMSE)滤波器对接收信号进行滤波,并且其中信道符号被单独解码并转换成位信息,使得均方根 可以通过使用适用于非准静态信道环境的线性叠加形式以及准静态信道环境来最小化误差(MSE)。 本发明提供了一种使用以实线性表示方法获得的MMSE滤波器的STBC方案,使得即使在移动台的速度较高的情况下也可以恢复发送的数据而不丢失该数据。

    Hybrid STBC receiver
    4.
    发明申请
    Hybrid STBC receiver 审中-公开
    混合STBC接收机

    公开(公告)号:US20060182207A1

    公开(公告)日:2006-08-17

    申请号:US11056745

    申请日:2005-02-11

    IPC分类号: H04B7/10 H04K1/10

    摘要: A receiver for a hybrid space time block codes (STBC) scheme using a nonlinear decision feedback (DFB) filter instead of a conventional linear filter which are used in the hybrid STBC scheme, that is, a combination of a spatial division multiplexing (SDM) scheme and a STBC scheme. In the receiver used for the STBC scheme, a previous-stage remaining signal is detected by using a well-known BLAST algorithm, and inter-symbol interference (ISI) is minimized by applying the previous-stage remaining signal to a current-stage signal, providing improved performance. The receiver used for the STBC scheme can be applied to a time varying channel fading environment as well as a quasi-static channel environment. According to the hybrid STBC scheme, a gain of about 3 dB can be obtained in channel environments having a frame error rate (FER) frequency efficiency of 2 and 3 Bps/Hz in the same condition by using a simulation.

    摘要翻译: 一种使用非线性判决反馈(DFB)滤波器而不是在混合STBC方案中使用的常规线性滤波器的混合空间时间块码(STBC)方案的接收机,即空分多路复用(SDM) 计划和STBC计划。 在用于STBC方案的接收机中,通过使用公知的BLAST算法检测前一级剩余信号,并且通过将前一级剩余信号应用于当前级信号来最小化符号间干扰(ISI) ,提供改进的性能。 用于STBC方案的接收机可以应用于时变信道衰落环境以及准静态信道环境。 根据混合STBC方案,通过使用模拟,可以在相同条件下具有2和3Bps / Hz的帧错误率(FER)频率效率的信道环境中获得约3dB的增益。