Method for signal mapping and signal transmission with subcarrier shift schemes
    74.
    发明授权
    Method for signal mapping and signal transmission with subcarrier shift schemes 有权
    使用子载波移位方案进行信号映射和信号传输的方法

    公开(公告)号:US08264945B2

    公开(公告)日:2012-09-11

    申请号:US12739672

    申请日:2008-10-15

    IPC分类号: H04J11/00 H04K1/10 H04L27/28

    摘要: A signal mapping method and a signal transmission method applying a subcarrier shift method are described. A signal mapping method using shifted subcarriers includes shifting positions of data subcarriers by as much as a frequency band corresponding to half of spacing between data subcarriers on a frequency axis, and shifting positions of random access preamble subcarriers by as much as a frequency band corresponding to half of spacing between the data subcarriers and to a specific ratio of spacing between the random access preamble subcarriers, and mapping data and a random access preamble to the data subcarriers and the random access preamble subcarrier, respectively. Even when the spacing between the data subcarriers is a multiple of the spacing between the random access preamble subcarriers, DC distortion can be minimized.

    摘要翻译: 描述了应用子载波移位方法的信号映射方法和信号传输方法。 使用移位副载波的信号映射方法包括数据副载波的位置移动与频率轴上的数据子载波之间的间隔的一半对应的频带以及随机接入前导码子载波的移位位置与对应于 数据子载波之间的间隔的一半和随机接入前导码副载波之间的特定的间隔比率,以及将数据和随机接入前同步码分别映射到数据子载波和随机接入前同步码副载波。 即使当数据子载波之间的间隔是随机接入前导码副载波之间的间隔的倍数时,也可以使DC失真最小化。

    Method for setting cyclic shift considering frequency offset
    75.
    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 )。

    Method of communication using frame
    76.
    发明授权
    Method of communication using frame 有权
    使用框架的通信方法

    公开(公告)号:US08223857B2

    公开(公告)日:2012-07-17

    申请号:US12372507

    申请日:2009-02-17

    IPC分类号: H04L27/28

    摘要: A device and method for communicating by a mobile communication terminal in communication with a base station. The method according to an embodiment includes exchanging a frame of data with the base station. The frame of data includes a) a plurality of first subframes each having a first number of orthogonal frequency division multiple access (OFDMA) symbols, and b) a plurality of second subframes each having a second number of orthogonal frequency division multiple access (OFDMA) symbols different from the first number. One of the second subframes includes an idle symbol.

    摘要翻译: 一种用于与基站通信的移动通信终端进行通信的装置和方法。 根据实施例的方法包括与基站交换数据帧。 数据帧包括a)多个第一子帧,每个第一子帧具有第一数量的正交频分多址(OFDMA)符号,以及b)多个第二子帧,每个第二子帧具有第二数目的正交频分多址(OFDMA) 符号与第一个数字不同。 第二子帧中的一个包括空闲符号。

    METHOD OF COMMUNICATION USING FRAME
    78.
    发明申请
    METHOD OF COMMUNICATION USING FRAME 有权
    使用框架的通信方法

    公开(公告)号:US20120026920A1

    公开(公告)日:2012-02-02

    申请号:US13252686

    申请日:2011-10-04

    摘要: A device and method for communicating by a mobile communication terminal in communication with a base station. The method according to an embodiment includes exchanging a frame of data with the base station. The frame of data includes a) a plurality of first subframes each having a first number of orthogonal frequency division multiple access (OFDMA) symbols, and b) a plurality of second subframes each having a second number of orthogonal frequency division multiple access (OFDMA) symbols different from the first number. A first and a last subframe each includes one of the plurality of first subframes.

    摘要翻译: 一种用于与基站通信的移动通信终端进行通信的装置和方法。 根据实施例的方法包括与基站交换数据帧。 数据帧包括a)多个第一子帧,每个第一子帧具有第一数量的正交频分多址(OFDMA)符号,以及b)多个第二子帧,每个第二子帧具有第二数目的正交频分多址(OFDMA) 符号与第一个数字不同。 第一和第二子帧各自包括多个第一子帧之一。

    Method of communication using frame
    80.
    发明授权
    Method of communication using frame 有权
    使用框架的通信方法

    公开(公告)号:US08059676B2

    公开(公告)日:2011-11-15

    申请号:US12372563

    申请日:2009-02-17

    IPC分类号: H04J3/00

    摘要: A device and method for communicating by a mobile communication terminal in communication with a base station. The method according to an embodiment includes exchanging a frame of data with the base station. The frame of data includes a) a plurality of first subframes each having a first number of orthogonal frequency division multiple access (OFDMA) symbols, and b) a plurality of second subframes each having a second number of orthogonal frequency division multiple access (OFDMA) symbols different from the first number. A first and a last subframe each includes one of the plurality of first subframes.

    摘要翻译: 一种用于与基站通信的移动通信终端进行通信的装置和方法。 根据实施例的方法包括与基站交换数据帧。 数据帧包括a)多个第一子帧,每个第一子帧具有第一数量的正交频分多址(OFDMA)符号,以及b)多个第二子帧,每个第二子帧具有第二数目的正交频分多址(OFDMA) 符号与第一个数字不同。 第一和第二子帧各自包括多个第一子帧之一。