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    SYSTEMS, APPARATUS AND METHODS FOR PHYSICAL RANDOM ACCESS CHANNEL PROCESSING
    4.
    发明申请
    SYSTEMS, APPARATUS AND METHODS FOR PHYSICAL RANDOM ACCESS CHANNEL PROCESSING 失效
    用于物理随机访问通道处理的系统，装置和方法

    公开(公告)号：US20110143762A1

    公开(公告)日：2011-06-16

    申请号：US12816305

    申请日：2010-06-15

    申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Hao Xu ,  Tao Luo

    发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Hao Xu ,  Tao Luo

    IPC分类号： H04W72/04

    CPC分类号： H04W74/008 ,  H04W74/004 ,  H04W74/0833

    摘要： Systems and methods for processing a physical random access channel are provided. In some embodiments, a method can include: receiving a signal indicative of a strong user and a desired user on a physical random access channel; performing at least one of a single segment frequency domain detection or a multi-segment frequency domain detection on the signal indicative of a strong user and a desired user; generating a residual signal by cancelling out the signal indicative of a strong user; and obtaining a message transmitted by a user equipment by performing at least one of the single segment frequency domain detection or multi-segment frequency domain detection on the residual signal.

    摘要翻译： 提供了用于处理物理随机访问信道的系统和方法。 在一些实施例中，方法可以包括：在物理随机接入信道上接收指示强用户和期望用户的信号; 对指示强用户和期望用户的信号执行单段频域检测或多段频域检测中的至少一个; 通过取消指示强用户的信号来产生残差信号; 以及通过对残差信号进行单段频域检测或多段频域检测中的至少一个来获得由用户设备发送的消息。

    Cell search based on beacon in a wireless communication system
    5.
    发明申请
    Cell search based on beacon in a wireless communication system 失效
    基于无线通信系统中的信标的小区搜索

    公开(公告)号：US20100091702A1

    公开(公告)日：2010-04-15

    申请号：US12444577

    申请日：2007-11-06

    申请人： Tao Luo ,  Durga Prasad Malladi ,  Hao Xu

    发明人： Tao Luo ,  Durga Prasad Malladi ,  Hao Xu

    IPC分类号： H04W4/00 ,  H04L1/02 ,  H04B17/00

    CPC分类号： H04L27/2613 ,  H04J11/0069 ,  H04L5/023 ,  H04L27/2608 ,  H04L27/2656 ,  H04W48/16

    摘要： Techniques for transmitting beacon signals to assist user equipments (UEs) perform cell search and techniques for detecting for beacon signals are described. In an aspect, cells may be assigned beacon patterns defined based on orthogonal grouping of subcarriers. U subcarriers usable for beacon may be arranged into G orthogonal groups, with each group including S subcarriers. different beacon patterns may be defined based on the G groups of S subcarriers. In another aspect, the cells may transmit their beacon signals at configurable transmit power levels, which may be determined based on target beacon detection performance. In yet another aspect, a UE may perform overlapping DFTs in order to capture more received power when symbol timing at the UE is not aligned with symbol timing of cells being detected. In yet another aspect, the UE may perform beacon detection with maximal likelihood decoding.

    摘要翻译： 描述用于发送信标信号以辅助用户设备（UE）执行小区搜索和用于检测信标信号的技术的技术。 在一个方面，可以为基站分配基于子载波的正交分组定义的信标模式。 可用于信标的U个子载波可以被布置成G个正交组，每个组包括S个子载波。 可以基于S个子载波的G组来定义不同的信标模式。 在另一方面，小区可以以可配置的发射功率电平发送它们的信标信号，这可以基于目标信标检测性能来确定。 在另一方面，当UE处的符号定时不与检测到的小区的符号定时对准时，UE可以执行重叠的DFT以便捕获更多的接收功率。 在另一方面，UE可以以最大似然解码来执行信标检测。

    Systems, apparatus and methods for physical random access channel processing
    9.
    发明授权
    Systems, apparatus and methods for physical random access channel processing 失效
    用于物理随机接入信道处理的系统，装置和方法

    公开(公告)号：US08265642B2

    公开(公告)日：2012-09-11

    申请号：US12816305

    申请日：2010-06-15

    申请人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Hao Xu ,  Tao Luo

    发明人： Xiaoxia Zhang ,  Durga Prasad Malladi ,  Yongbin Wei ,  Hao Xu ,  Tao Luo

    IPC分类号： H04W72/00

    CPC分类号： H04W74/008 ,  H04W74/004 ,  H04W74/0833

    摘要： Systems and methods for processing a physical random access channel are provided. In some embodiments, a method can include: receiving a signal indicative of a strong user and a desired user on a physical random access channel; performing at least one of a single segment frequency domain detection or a multi-segment frequency domain detection on the signal indicative of a strong user and a desired user; generating a residual signal by cancelling out the signal indicative of a strong user; and obtaining a message transmitted by a user equipment by performing at least one of the single segment frequency domain detection or multi-segment frequency domain detection on the residual signal.

    摘要翻译： 提供了用于处理物理随机访问信道的系统和方法。 在一些实施例中，方法可以包括：在物理随机接入信道上接收指示强用户和期望用户的信号; 对指示强用户和期望用户的信号执行单段频域检测或多段频域检测中的至少一个; 通过取消指示强用户的信号来产生残差信号; 以及通过对残差信号进行单段频域检测或多段频域检测中的至少一个来获得由用户设备发送的消息。