Method of constructing a frame by multiplexing subframes having different CP length
    81.
    发明授权
    Method of constructing a frame by multiplexing subframes having different CP length 失效
    通过复用具有不同CP长度的子帧来构造帧的方法

    公开(公告)号:US08665907B2

    公开(公告)日:2014-03-04

    申请号:US13055658

    申请日:2009-08-26

    IPC分类号: H04J3/16

    CPC分类号: H04L27/2602 H04L27/2607

    摘要: The present invention relates to a broadband wireless access system, and more particularly, to a frame structure to which OFDM symbols having a cyclic prefix are transmitted. A method of constructing a frame in a broadband wireless access system according to one embodiment of the present invention comprises including one or more first subframes in the frame, the first subframes including a plurality of symbols having a cyclic prefix of a first length; and including one or more second subframes in the frame, the second subframes including a plurality of symbols having a cyclic prefix of a second length different from the first length, wherein the number of the first subframes and the number of the second subframes are determined considering an idle time for which effective symbols are not included in the frame.

    摘要翻译: 宽带无线接入系统技术领域本发明涉及宽带无线接入系统,更具体地,涉及发送具有循环前缀的OFDM符号的帧结构。 根据本发明的一个实施例的在宽带无线接入系统中构造帧的方法包括在帧中包括一个或多个第一子帧,第一子帧包括具有第一长度的循环前缀的多个符号; 并且在所述帧中包括一个或多个第二子帧,所述第二子帧包括具有不同于所述第一长度的第二长度的循环前缀的多个符号,其中所述第一子帧的数量和所述第二子帧的数量被考虑 有效符号不包括在帧中的空闲时间。

    Method for generating a reference signal sequence using grouping
    83.
    发明授权
    Method for generating a reference signal sequence using grouping 有权
    使用分组生成参考信号序列的方法

    公开(公告)号:US08509283B2

    公开(公告)日:2013-08-13

    申请号:US13341358

    申请日:2011-12-30

    IPC分类号: H04B1/707

    摘要: A method for a base station to receive a reference signal sequence from one or more devices within a cell of the base station in a multiple cell environment includes providing the one or more devices with information about the reference signal sequence, wherein the reference signal sequence is defined by a cyclic shift of a base sequence, wherein the base sequence is one of a plurality of base sequences divided into groups, wherein each of the groups comprises at least one base sequence for each length (N), wherein each length (N) corresponds to (12*n), (n) being a positive integer, and receiving the reference signal sequence from one or more of the one or more devices.

    摘要翻译: 一种用于基站在多小区环境中从所述基站的小区内的一个或多个设备接收参考信号序列的方法包括向所述一个或多个设备提供关于所述参考信号序列的信息,其中所述参考信号序列是 由碱基序列的循环移位定义,其中碱基序列是分成组的多个碱基序列之一,其中每个基团包含每个长度(N)的至少一个碱基序列,其中每个长度(N) 对应于(12 * n),(n)为正整数,并从一个或多个设备中的一个或多个接收参考信号序列。

    Method for setting cyclic shift considering frequency offset
    90.
    发明授权
    Method for setting cyclic shift considering frequency offset 有权
    考虑频率偏移设置循环移位的方法

    公开(公告)号:US08259844B2

    公开(公告)日:2012-09-04

    申请号:US13284823

    申请日:2011-10-28

    IPC分类号: H04L27/04

    摘要: A method for a user equipment to transmit a random access preamble sequence to a base station includes transmitting the random access preamble sequence generated from a Constant Amplitude Zero Auto Correlation (CAZAC) sequence to the base station, wherein the CAZAC sequence is cyclic shifted according to one of applicable cyclic shift values defined considering a value (M) representing a Doppler shift of one subcarrier spacing and a cyclic shift unit length (T), and wherein when the value (M) meets a condition of ‘P*T≦M

    摘要翻译: 一种用于将用户设备向基站发送随机接入前同步码序列的方法,包括:将从恒定幅度零自动相关(CAZAC)序列生成的随机接入前同步码序列发射到所述基站,其中,所述CAZAC序列根据 考虑表示一个子载波间隔的多普勒频移的值(M)和循环移位单位长度(T)而定义的适用循环移位值之一,并且其中当所述值(M)满足条件“P * T& (P + 1)* T'其中(P)是整数,可应用的循环移位值之中的一个或多个相邻循环移位值被定义为组,并且该组内的相邻循环移位值的数目等于(P )。