Method for setting cyclic shift considering frequency offset
    1.
    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:US07792212B2

    公开(公告)日:2010-09-07

    申请号:US11969834

    申请日:2008-01-04

    IPC分类号: H04L27/04

    摘要: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

    摘要翻译: 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离,根据计算出的距离计算每组的循环移位数,并建立循环移位(CS)应用间隔 。 这种方法通过考虑接收(Rx)序列的信道响应和该接收(Rx)序列的别名位置而容易地在没有重叠的特定位置建立循环移位(CS)间隔,尽管接收(Rx)信号是 移动了信道延迟扩展或传播延迟,而与生成序列的域的类别无关,从而可以大大减少检测误差和误报率。 并且,如果将循环移位(CS)的序列分配给具有大于预定电平的频率偏移的小区,则本发明可以最小化频率偏移对高移动性小区的影响。

    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET
    2.
    发明申请
    METHOD FOR SETTING CYCLIC SHIFT CONSIDERING FREQUENCY OFFSET 有权
    设定考虑频率偏移的循环移位的方法

    公开(公告)号:US20080168114A1

    公开(公告)日:2008-07-10

    申请号:US11969834

    申请日:2008-01-04

    IPC分类号: G06F9/315

    摘要: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate. And, if a sequence of the cyclic shift (CS) is allocated to a cell having a frequency offset of more than a predetermined level, the present invention can minimize the influence of a frequency offset on a high-mobility cell.

    摘要翻译: 公开了一种建立循环移位序列以提供抵消频偏的方法。 该方法计算序列的信道响应位置与由频率偏移引起的别名信道响应位置之间的距离,根据计算出的距离计算每组的循环移位数,并建立循环移位(CS)应用间隔 。 这种方法通过考虑接收(Rx)序列的信道响应和该接收(Rx)序列的别名位置而容易地在没有重叠的特定位置建立循环移位(CS)间隔,尽管接收(Rx)信号是 移动了信道延迟扩展或传播延迟,而与生成序列的域的类别无关,从而可以大大减少检测误差和误报率。 并且,如果将循环移位(CS)的序列分配给具有大于预定电平的频率偏移的小区,则本发明可以最小化频率偏移对高移动性小区的影响。

    Apparatus for transmitting a synchronous signal in a multi-antenna system
    4.
    发明授权
    Apparatus for transmitting a synchronous signal in a multi-antenna system 有权
    用于在多天线系统中发送同步信号的装置

    公开(公告)号:US08660201B2

    公开(公告)日:2014-02-25

    申请号:US13001403

    申请日:2009-06-26

    IPC分类号: H04B7/02 H04L1/02

    摘要: An apparatus for transmitting a synchronization signal using a plurality of transmit (Tx) antennas is provided. The apparatus includes a synchronization signal generator for generating a synchronization signal used for tracking timing or frequency synchronization, a transmission processor for allocating different subcarriers to a plurality of Tx antennas without overlapping, mapping the synchronization signal to the subcarriers, and generating an orthogonal frequency division multiplexing (OFDM) symbol by performing inverse fast Fourier transformation (IFFT), a control signal coupler for controlling codes as a resource not to overlap among the plurality of Tx antennas, and the plurality of Tx antennas for transmitting the OFDM symbol.

    摘要翻译: 提供了一种使用多个发送(Tx)天线发送同步信号的装置。 该装置包括用于产生用于跟踪定时或频率同步的同步信号的同步信号发生器,用于将不同子载波分配给多个Tx天线而不重叠的发送处理器,将同步信号映射到副载波,并产生正交频分 通过执行快速傅里叶逆变换(IFFT)来进行多路复用(OFDM)符号,用于控制代码作为多个Tx天线之间不重叠的资源的控制信号耦合器和用于发送OFDM符号的多个Tx天线。

    Ranging structure, multiplexing method and signaling method for legacy support mode
    7.
    发明授权
    Ranging structure, multiplexing method and signaling method for legacy support mode 有权
    传统支持模式的测距结构,复用方法和信令方法

    公开(公告)号:US08547903B2

    公开(公告)日:2013-10-01

    申请号:US12921307

    申请日:2009-03-04

    IPC分类号: H04W4/00

    CPC分类号: H04L5/0007 H04L5/0023

    摘要: A method of performing communication in a wireless communication system is disclosed. In performing ranging, which is performed by a terminal in a wireless communication system supporting a normal scheme and a legacy scheme, the present invention includes selecting a specific ranging structure from a first ranging structure supporting the normal scheme and a second ranging structure supporting the legacy scheme, and transmitting a ranging signal using the specific ranging structure, wherein the first ranging structure and the second ranging structure are set to differ in at least one of a time resource, a frequency resource and a code resource.

    摘要翻译: 公开了一种在无线通信系统中执行通信的方法。 在由支持普通方案和传统方案的无线通信系统中的终端执行的执行测距中,本发明包括从支持正常方案的第一测距结构和支持传统方式的第二测距结构中选择特定测距结构 并且使用所述特定测距结构发送测距信号,其中所述第一测距结构和所述第二测距结构被设置为在时间资源,频率资源和码资源中的至少一个中不同。

    Method for resource partitioning with predefined pattern and adaptive resource partitioning method
    8.
    发明授权
    Method for resource partitioning with predefined pattern and adaptive resource partitioning method 失效
    用预定义模式和自适应资源划分方法进行资源划分的方法

    公开(公告)号:US08532035B2

    公开(公告)日:2013-09-10

    申请号:US12344061

    申请日:2008-12-24

    IPC分类号: H04W4/00

    CPC分类号: H04W72/04 H04W72/042

    摘要: An adaptive resource partitioning method includes: selecting a predefined pattern-based partitioning method or an informed map-based partitioning method according to the number of channels used for resource allocation, data characteristics, and a channel environment variation, if the predefined pattern scheme is selected, selecting any of predefined patterns, partitioning distributed and localized resource allocation areas according to the selected pattern, and transmitting a pattern index of the selected pattern to a terminal, and if the informed map scheme is selected, partitioning distributed and localized resource allocation areas according to an arbitrary pattern, and transmitting bitmap control information indicating information of the partitioned areas to the terminal. So, it effectively obtains a diversity and a scheduling gain when distributed and localized resource allocations are simultaneously used, such that it increases flexibility of resource allocation, increases an available data transfer rate, and reduces an amount of necessary control information.

    摘要翻译: 自适应资源划分方法包括:如果选择了预定模式方案,则根据用于资源分配,数据特征和信道环境变化的信道数量,选择预定义的基于模式的划分方法或基于通知的映射分区方法 选择预定模式中的任何一种,根据所选择的模式划分分布式和本地化的资源分配区域,并将所选模式的模式索引发送到终端,如果选择了通知映射方案,则按照 发送到任意模式,并且向终端发送指示划分区域的信息的位图控制信息。 因此,当分配和本地化的资源分配被同时使用时,它有效地获得了多样性和调度增益,从而增加了资源分配的灵活性,增加了可用的数据传输速率,并减少了必要的控制信息量。