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    SYSTEMS AND METHODS FOR ACQUIRING SYNCHRONIZATION USING DUAL DETECTION THRESHOLDS
    2.
    发明授权
    SYSTEMS AND METHODS FOR ACQUIRING SYNCHRONIZATION USING DUAL DETECTION THRESHOLDS 有权
    系统和方法SYNC双阈值的检测工作

    公开(公告)号：EP1142189B1

    公开(公告)日：2005-11-30

    申请号：EP99961706.1

    申请日：1999-11-18

    申请人： Ericsson Inc.

    发明人： ZAK, Robert, A.

    IPC分类号： H04L7/04 ,  H04L27/233 ,  H04B7/26

    CPC分类号： H04L7/042 ,  H04B7/2665 ,  H04B7/2681 ,  H04W56/0085

    摘要： Systems and methods for locating a known multi-symbol syncword in a received signal are disclosed, wherein a potential syncword is located in a first batch of samples of the received signal which has a correlation energy with the known syncword which exceeds a first detection threshold. A correlation energy with the known syncword for a group of samples in a second batch of samples of the received signal is determined, where the group of samples in the second batch of samples are selected based on the location of the potential syncword within the first batch of samples. The correlation energy associated with the group of samples in the second batch of samples is compared with a second detection threshold that is higher than the first detection threshold. The location of the known syncword may be identified based upon the comparison of the correlation energy associated with the group of samples in the second batch of samples with the second detection threshold.

    SYSTEMS AND METHODS FOR ACQUIRING SYNCHRONIZATION USING DUAL DETECTION THRESHOLDS
    3.
    发明公开
    SYSTEMS AND METHODS FOR ACQUIRING SYNCHRONIZATION USING DUAL DETECTION THRESHOLDS 有权
    系统和方法SYNC双阈值的检测工作

    公开(公告)号：EP1142189A1

    公开(公告)日：2001-10-10

    申请号：EP99961706.1

    申请日：1999-11-18

    申请人： Ericsson, Inc.

    发明人： ZAK, Robert, A.

    IPC分类号： H04L7/04 ,  H04L27/233 ,  H04B7/26

    CPC分类号： H04L7/042 ,  H04B7/2665 ,  H04B7/2681 ,  H04W56/0085

    摘要： Systems and methods for locating a known multi-symbol syncword in a received signal are disclosed, wherein a potential syncword is located in a first batch of samples of the received signal which has a correlation energy with the known syncword which exceeds a first detection threshold. A correlation energy with the known syncword for a group of samples in a second batch of samples of the received signal is determined, where the group of samples in the second batch of samples are selected based on the location of the potential syncword within the first batch of samples. The correlation energy associated with the group of samples in the second batch of samples is compared with a second detection threshold that is higher than the first detection threshold. The location of the known syncword may be identified based upon the comparison of the correlation energy associated with the group of samples in the second batch of samples with the second detection threshold.

    Method, server and base station for synchronization of multicast and broadcast frame portions in WiMAX systems
    7.
    发明公开
    Method, server and base station for synchronization of multicast and broadcast frame portions in WiMAX systems 有权
    方法，服务器和基站同步多台及无线传输帧份WiMAX系统

    公开(公告)号：EP1903813A1

    公开(公告)日：2008-03-26

    申请号：EP06300959.1

    申请日：2006-09-19

    申请人： Alcatel Lucent

    发明人： Fahldieck, Torsten

    IPC分类号： H04Q7/24

    CPC分类号： H04B7/2665 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0091 ,  H04W56/00

    摘要： The present invention relates to a method for performing data synchronization in a wireless access communication network, said data to be synchronized coming from an access network gateway and being sent to at least two base stations, said data being further sent from said base stations to user terminals over an air interface in downlink frames.
    According to the present invention, the method comprises the step of sending a signaling message to said at least two base stations said signaling message comprising a set of parameters defining unambiguously position and size of said data in said downlink frame and the structure of said data.

    摘要翻译： 本发明涉及一种用于在无线接入通信网中执行数据同步的方法，所述数据从接入网关来和被发送到至少两个基站进行同步，所述数据被进一步从所述基站到用户发送 到在下行链路帧中的空中接口的端子。 。根据本发明，该方法包括发送信令消息到所述的步骤是在至少两个基站所述信令消息包括一组参数定义明确的位置和在所述下行链路帧的所述数据的大小和所述数据的结构。