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264 条记录 (耗时 0.031 秒)

    Scheduling Different Types of Receivers in a Radio Base Station
    21.
    发明申请
    Scheduling Different Types of Receivers in a Radio Base Station 有权
    在无线电基站中调度不同类型的接收机

    公开(公告)号：US20120099621A1

    公开(公告)日：2012-04-26

    申请号：US13379474

    申请日：2009-07-01

    申请人： Patrik Karlsson ,  Torbjorn Wigren

    发明人： Patrik Karlsson ,  Torbjorn Wigren

    IPC分类号： H04W72/12 ,  H04B1/7115

    CPC分类号： H04W52/365 ,  H04B2201/70702 ,  H04W52/283 ,  H04W64/00 ,  H04W72/048 ,  H04W88/08

    摘要： The invention relates to a method in a radio base station (110) of a radio 100 telecommunications network (100), wherein the radio base station (110) comprises at least two different types of receivers; a first type of receivers and a second type of receivers. The first type of receivers comprises a different receiving sensitivity than the second type of receivers. The method is for scheduling a first type of receiver to a user equipment (120) within a radio cell (115) served by the radio base station (110). The radio base station determines a distance (125) between the user equipment (120) and a radio cell boundary (127) of the radio cell (115), and schedules the first type of receiver to the user equipment (120) when the distance is determined to be within a distance range.

    摘要翻译： 本发明涉及无线电100电信网络（100）的无线电基站（110）中的方法，其中该无线电基站（110）包括至少两种不同类型的接收机; 第一类型的接收器和第二类型的接收器。 第一类接收机包括与第二类接收机不同的接收灵敏度。 该方法用于将第一类型的接收机调度到由无线电基站（110）服务的无线电小区（115）内的用户设备（120）。 无线电基站确定用户设备（120）和无线电小区（115）的无线电小区边界（127）之间的距离（125），并且当距离（125）的距离 被确定在距离范围内。

    Varying early-late spacing in a delay locked loop
    22.
    发明申请
    Varying early-late spacing in a delay locked loop 有权

    公开(公告)号：US20050265432A1

    公开(公告)日：2005-12-01

    申请号：US11193710

    申请日：2005-07-29

    申请人： Sundar Raman

    发明人： Sundar Raman

    IPC分类号： H04B1/7085 ,  H04B1/7115 ,  H04B1/7117 ,  H04B1/707

    CPC分类号： H04B1/7085 ,  H04B1/7115 ,  H04B1/7117

    摘要： A rake receiver tracks a component of a multipath information signal transmitted over a communication network. The rake receiver aligns and synchronized the component with a locally generated replica of the code sequence that was originally used to spread the information signal at the transmitter side. The rake receiver derives an early de-spread signal using an early shifted version of the replica of the code sequence. The replica is early shifted by a variable delay. The rake receiver also derives a late shifted de-spread signal using a late shifted version of the replica of the code sequence. The replica is late shifted by the same variable delay. The variable delay may be chosen arbitrarily or among a selection of predetermined values. The predetermined values may be selected so that the tracking process is optimized.

    Interference signal canceling apparatus and interference signal canceling method
    23.
    发明授权
    Interference signal canceling apparatus and interference signal canceling method 失效
    干扰信号消除装置和干扰信号消除方法

    公开(公告)号：US06968023B2

    公开(公告)日：2005-11-22

    申请号：US09936430

    申请日：2001-01-12

    申请人： Takahisa Aoyama ,  Kazuyuki Miya ,  Kenichi Miyoshi

    发明人： Takahisa Aoyama ,  Kazuyuki Miya ,  Kenichi Miyoshi

    IPC分类号： H04J13/00 ,  H04B1/10 ,  H04B1/7107 ,  H04B1/7115 ,  H04B7/26 ,  H04L7/08 ,  H04W88/08 ,  H03D1/04

    CPC分类号： H04B1/71057 ,  H04B1/71075 ,  H04B2001/71077

    摘要： Respective threshold value judging units 108-1 through 108-n compare the likelihoods calculated by the corresponding likelihood calculators 106-1 through 106-n with threshold values stored in a threshold value buffer 109 in terms of size, and output signals, which show the corresponding likelihood in only a case where the likelihood is the threshold value or more, through a likelihood transmission bus 110. The rank decision unit 112 ranks the symbols for which the likelihood is an appointed threshold value or more, on the basis of the likelihoods stored in the likelihood buffer 111, whereby it is possible to relieve the traffic of a bus line and to suppress the amount of processing in a ranking process with respect to all non-demodulated symbols.

    摘要翻译： 相应的阈值判断单元108-1至108-n将由相应的似然度计算器106-1至106-n计算的似然率与存储在阈值缓冲器109中的阈值和尺寸进行比较， 通过似然传输总线110仅在可能性为阈值或更大的情况下的对应似然。 秩决定单元112基于存储在似然缓冲器111中的似然性，对似然度为指定阈值以上的符号进行排序，由此可以减轻总线的流量并抑制量 在针对所有未解调的符号的排序过程中进行处理。

    Radio reception apparatus and directivity reception method
    25.
    发明授权
    Radio reception apparatus and directivity reception method 失效
    无线接收装置和方向性接收方法

    公开(公告)号：US06888501B2

    公开(公告)日：2005-05-03

    申请号：US10250457

    申请日：2002-09-18

    申请人： Yoshiyasu Hirayama ,  Takahisa Aoyama

    发明人： Yoshiyasu Hirayama ,  Takahisa Aoyama

    IPC分类号： H01Q3/26 ,  H04B1/10 ,  H04B1/707 ,  H04B1/7113 ,  H04B1/7115 ,  H04B7/08 ,  H04B7/10 ,  H01Q3/00

    CPC分类号： H04B7/086 ,  H04B1/712 ,  H04B7/0842 ,  H04B7/0857

    摘要： Delay profile creation sections 7 and 8 create a delay profile for each of fixed directivity reception signals combined using a plurality of fixed weight patterns. A path search section 11 detects a delay profile in which the maximum peak has appeared. An initial value weight selection section 12 selects the fixed weight corresponding to the delay profile in which the maximum peak has appeared as an initial value weight. An adaptive array antenna reception control section 13 uses this initial value weight as the initial value of an optimization algorithm to calculate the optimal weight of the adaptive array antenna. Thus, it is possible to reduce the time required to calculate the optimal weight by means of the optimization algorithm.

    摘要翻译： 延迟分布创建部分7和8为使用多个固定权重模式组合的每个固定方向性接收信号创建延迟分布。 路径搜索部11检测出现最大峰值的延迟分布。 初始值权重选择部分12选择与出现最大峰值的延迟分布对应的固定权重作为初始值权重。 自适应阵列天线接收控制部分13使用该初始值权重作为优化算法的初始值来计算自适应阵列天线的最佳权重。 因此，可以通过优化算法来减少计算最优权重所需的时间。

    Method and apparatus for fast detection of locations of path rays in a receiver having multiple time references
    27.
    发明授权
    Method and apparatus for fast detection of locations of path rays in a receiver having multiple time references 失效
    用于在具有多个时间参考的接收机中快速检测路径光线位置的方法和装置

    公开(公告)号：US06873648B1

    公开(公告)日：2005-03-29

    申请号：US09518063

    申请日：2000-03-02

    申请人： Roozbeh Atarius ,  Erik Dahlbäck

    发明人： Roozbeh Atarius ,  Erik Dahlbäck

    IPC分类号： H04B7/26 ,  H04B1/7085 ,  H04B1/7113 ,  H04B1/7115 ,  H04B1/707

    CPC分类号： H04B1/7085 ,  H04B1/7113 ,  H04B1/7115

    摘要： Locations of path rays in a multi-path channel receiver having multiple time references are detected, e.g., when the receiver switches time references. Locations of received path rays are searched for and determined. The locations are tracked for a predetermined amount of time. If the locations are lost after a predetermined amount of time, a new search for the locations of the received path rays is initiated. The searching may include determining a probable location of a most significant path ray, shifting the location within a predetermined interval, analyzing each shifted location to determine whether the shifted location corresponds to the actual location of the received path ray, and depending on the analysis results, completing the search or determining a probable location of a next most significant ray. The analysis may be performed by correlating each shifted location with a pilot sequence and determining if the correlation results exceed a predetermined threshold. If the correlation results do not exceed the threshold, a determination is made whether all the most significant path rays have been analyzed, and if so, a complete search for the path ray location is initiated. When switching from a time reference of low accuracy to a time reference of high accuracy, the low accuracy time reference may be calibrated to the high accuracy time reference based on averaged measurements of the ratio of clock cycles of the time reference of high accuracy to the clock cycles of the time reference of low accuracy.

    摘要翻译： 例如，当接收器切换时间基准时，检测具有多个时间基准的多路径信道接收机中路径光线的位置。 搜索并确定接收路径光线的位置。 这些位置被跟踪预定的时间量。 如果位置在预定时间量之后丢失，则开始对接收到的路径光线的位置的新的搜索。 搜索可以包括确定最重要的路径光线的可能位置，在预定间隔内移动位置，分析每个移位的位置以确定移位的位置是否对应于接收的路径光线的实际位置，并且根据分析结果 完成搜索或确定下一个最重要射线的可能位置。 可以通过将每个移位的位置与导频序列相关并且确定相关结果是否超过预定阈值来执行分析。 如果相关结果不超过阈值，则确定是否已经分析了所有最重要的路径光线，并且如果是，则启动对路径光线位置的完整搜索。 当从低精度的时间基准切换到高精度的时间基准时，可以基于高精度时间基准的时钟周期的比率的平均测量值将精度低的时间基准校准为高精度时间基准， 时钟周期的时间参考精度低。