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    RACH PREAMBLE DETECTION RECEIVER
    1.
    发明申请
    RACH PREAMBLE DETECTION RECEIVER 审中-公开
    RACH PREAMBLE检测接收器

    公开(公告)号：WO2008156588A1

    公开(公告)日：2008-12-24

    申请号：PCT/US2008/007240

    申请日：2008-06-10

    Applicant: LUCENT TECHNOLOGIES INC. ,  CHENG, Fang-Chen ,  SONG, Lei ,  YE, Henry, Hui

    Inventor： CHENG, Fang-Chen ,  SONG, Lei ,  YE, Henry, Hui

    IPC: H04L27/26

    CPC classification number: H04L27/265 ,  H04L27/2613 ,  H04L27/2652

    Abstract: A low complexity RACH preamble detector is described herein. The RACH is filtered out of the received signal in the time domain through a low pass polyphase filter (22) and the decimated (24). By consequence the dimension of the FFT can be reduced. The RACH is extracted from the output of the FFT and it is correlated with a CAZAC frequency domain reference sequence (16). Thereafter, the signal obtained is transformed in the time domain (18) and a peak is retrieved (20).

    Abstract translation: 这里描述了低复杂度的RACH前导码检测器。 通过低通多相滤波器（22）和抽取的（24）在时域中从接收信号中滤出RACH。 由此可以减少FFT的尺寸。 从FFT的输出中提取RACH，并与CAZAC频域参考序列（16）相关。 此后，将获得的信号在时域（18）中变换，并且检索峰值（20）。

    METHOD OF INCREASING THE CAPACITY OF ENHANCED DATA CHANNEL ON UPLINK IN A WIRELESS COMMUNICATIONS SYSTEM
    2.
    发明申请
    METHOD OF INCREASING THE CAPACITY OF ENHANCED DATA CHANNEL ON UPLINK IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
    在无线通信系统中增加上行链路增强数据信道容量的方法

    公开(公告)号：WO2007041050A1

    公开(公告)日：2007-04-12

    申请号：PCT/US2006/037188

    申请日：2006-09-25

    Applicant: LUCENT TECHNOLOGIES INC. ,  BACHL, Rainer, Walter ,  RAO, Anil, M. ,  SCHACHT, Mirko ,  YE, Henry, Hui

    Inventor： BACHL, Rainer, Walter ,  RAO, Anil, M. ,  SCHACHT, Mirko ,  YE, Henry, Hui

    IPC: H04Q7/38

    CPC classification number: H04L1/1812 ,  H04L1/0025 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/146 ,  Y02D70/23

    Abstract: In a UMTS wireless communication system, the enhanced dedicated physical control channel (E-DPCCH) that is usually always transmitted together with the enhanced dedicated physical data channel (E-DPDCH) on the uplink from a UE to a NodeB is instead only transmitted when a predetermined "start criterion" is met and is turned off when a predetermined "stop criterion" is met until a "start criterion" is later met again. The UE starts transmitting E-DPCCH whenever the corresponding E-DPDCH transport format combination is different from the previous one in the same HARQ process or some other "start criterion" is met. Multiple mechanisms can be used to decide when the UE should switch off E-DPCCH transmission after the transport format combination of E-DPDCH has changed.

    Abstract translation: 在UMTS无线通信系统中，通常总是随着从UE到节点B的上行链路上的增强型专用物理数据信道（E-DPDCH）一起发送的增强型专用物理控制信道（E-DPCCH）而仅在 满足预定的“开始标准”，并且当满足预定的“停止标准”直到再次满足“开始标准”为止时才关闭。 只要相应的E-DPDCH传输格式组合与相同的HARQ过程中的前一个不同，或满足一些其他的“启动准则”，则UE开始发送E-DPCCH。 在E-DPDCH的传输格式组合发生变化之后，可以使用多种机制来决定UE何时切断E-DPCCH传输。

    RECEIVER AND METHOD FOR PERFORMING INTERFERENCE CANCELLATION
    3.
    发明申请
    RECEIVER AND METHOD FOR PERFORMING INTERFERENCE CANCELLATION 审中-公开
    接收机和干扰消除方法

    公开(公告)号：WO2011008412A1

    公开(公告)日：2011-01-20

    申请号：PCT/US2010/039155

    申请日：2010-06-18

    Applicant: ALCATEL-LUCENT USA INC. ,  RAO, Anil, M. ,  YE, Henry ,  SONI, Robert, A.

    Inventor： RAO, Anil, M. ,  YE, Henry ,  SONI, Robert, A.

    IPC: H04B1/707

    CPC classification number: H04B1/71075 ,  H04B1/71072

    Abstract: To address the need for new interference cancellation techniques that are able to deliver adequate performance but with reduced processing requirements, various embodiments are described. In some embodiments, a receiving device demodulates and decodes (201) at least one first-group user from a multi-user input signal. This multi-user input signal includes at least one first-group user and at least one second-group user, the first-group users having a shorter transmission time interval (TTI) than the second-group users. The receiving device reconstructs 202) an interference signal for each of the first-group users that were successfully decoded and subtracts (203) each interference signal from the multi-user input signal to generate an interference-canceled signal. The receiving device then demodulates and decodes (204) at least one second-group user using this interference-canceled signal.

    Abstract translation: 为了解决能够提供足够的性能但是减少处理要求的新的干扰消除技术的需要，描述了各种实施例。 在一些实施例中，接收设备从多用户输入信号解调和解码（201）至少一个第一组用户。 该多用户输入信号包括至少一个第一组用户和至少一个第二组用户，第一组用户具有比第二组用户更短的传输时间间隔（TTI）。 接收装置重建202）成功解码的每个第一组用户的干扰信号，并从多用户输入信号中减去（203）每个干扰信号以产生干扰消除信号。 然后，接收设备使用该干扰消除信号来解调（204）至少一个第二组用户。

    METHOD FOR ACCOMODATING TIMING DRIFT BETWEEN BASE STATIONS IN A WIRELESS COMMUNICATIONS SYSTEM
    5.
    发明申请
    METHOD FOR ACCOMODATING TIMING DRIFT BETWEEN BASE STATIONS IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
    用于在无线通信系统中基站之间承载时序的方法

    公开(公告)号：WO2007002253A1

    公开(公告)日：2007-01-04

    申请号：PCT/US2006/024245

    申请日：2006-06-22

    Applicant: LUCENT TECHNOLOGIES INC. ,  YE, Henry, Hui ,  ZHU, Lily, H.

    Inventor： YE, Henry, Hui ,  ZHU, Lily, H.

    IPC: H04B7/26 ,  H04Q7/38 ,  H04J3/06

    CPC classification number: H04W56/003 ,  H04B7/2681 ,  H04W36/18 ,  H04W92/10

    Abstract: A method is provided for controlling communications between a base station and a mobile device. The method comprises enlarging a search window in which a transmission is expected to be received in response to the absence of an external timing signal, such as when the global positioning system (GPS) is shut down. Additionally or alternatively, the method further comprises altering the timing of a received signal relative to a search window, such as by delaying the timing of the received signal to move the signal toward the center of the search window.

    Abstract translation: 提供了一种用于控制基站和移动设备之间的通信的方法。 该方法包括扩大搜索窗口，其中响应于不存在外部定时信号，例如当全球定位系统（GPS）被关闭时，希望接收传输的搜索窗口。 附加地或替代地，该方法还包括改变相对于搜索窗口的接收信号的定时，例如通过延迟接收信号的定时将信号移向搜索窗口的中心。

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