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607 条记录 (耗时 0.052 秒)

    Method for transmitting signal in multiple antenna system
    23.
    发明授权
    Method for transmitting signal in multiple antenna system 有权
    用于在多天线系统中发射信号的方法

    公开(公告)号：US08406333B2

    公开(公告)日：2013-03-26

    申请号：US12739713

    申请日：2008-11-12

    申请人： Yeong Hyeon Kwon ,  Min Seok Noh ,  Sung Ho Moon ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Hyun Woo Lee ,  Seung Hee Han

    发明人： Yeong Hyeon Kwon ,  Min Seok Noh ,  Sung Ho Moon ,  Dong Cheol Kim ,  Jin Sam Kwak ,  Hyun Woo Lee ,  Seung Hee Han

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0417 ,  H04B7/0439 ,  H04B7/0619 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    摘要： A signal transmission method in a multiple antenna system is described. The signal transmission method includes, upon receiving channel state information from a receiving end, estimating a channel according to the channel state information, determining a precoding matrix according to the estimated channel and modifying the signal of the transmitting end using the precoding matrix in a process of mapping a symbol of the signal to a subcarrier, and transmitting the signal to the receiving end. According to the present invention, pre-equalization of a transmission signal can cause a receiving end to perform coherent combination, reduce pilot density by decreasing unnecessary pilots, and reduce interference within a cell or between cells.

    摘要翻译： 描述多天线系统中的信号传输方法。 信号传输方法包括：从接收端接收到信道状态信息时，根据信道状态信息估计信道，根据所估计的信道确定预编码矩阵，并且在过程中使用预编码矩阵修改发送端的信号 将信号的符号映射到子载波，并将该信号发送到接收端。 根据本发明，传输信号的预均衡可以使接收端执行相干组合，通过减少不必要的导频来减少导频密度，并减少小区内或小区之间的干扰。

    Method for generating 2 or more sequence set, and method for generating sequence for the same
    25.
    发明授权
    Method for generating 2 or more sequence set, and method for generating sequence for the same 有权
    用于生成2个或更多个序列集的方法，以及用于生成序列的方法

    公开(公告)号：US08363692B2

    公开(公告)日：2013-01-29

    申请号：US12525798

    申请日：2008-02-05

    申请人： Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim ,  Jin Sam Kwak

    发明人： Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim ,  Jin Sam Kwak

    IPC分类号： H04B1/00

    CPC分类号： H04L25/0226 ,  H04J11/0069 ,  H04L5/0007 ,  H04L27/2613 ,  H04L27/262

    摘要： A method for generating a set of at least two sequences is provided. This method selects at least one sequence from each of at least two sequences based on different lengths, including first and second types of sequences, and generates a set of at least two sequences using the selected sequences. Another method selects at least one sequence from a first type of sequences and at least one sequence from a second type of sequences generated by modulating the first type of sequences using a different type of sequences, and generates the set of at least two sequences using the selected sequences. To generate sequences based on a length corresponding to available subcarriers excluding a DC subcarrier, another method generates sequences such that the sequences are continuously arranged in a region excluding the DC subcarrier using frequency-domain cyclic shift while none of the sequences is allocated to the DC subcarrier.

    摘要翻译： 提供了一种用于生成至少两个序列的集合的方法。 该方法基于不同的长度（包括第一和第二类型的序列）从至少两个序列中的至少两个序列中选择至少一个序列，并且使用所选择的序列生成至少两个序列的集合。 另一种方法从第一类型的序列中选择至少一个序列，以及从使用不同类型的序列调制第一类型序列产生的第二类型的序列中选择至少一个序列，并且使用 选择的序列。 为了基于与除了DC子载波之外的可用副载波相对应的长度来生成序列，另一种方法生成序列，使得序列在频域循环移位之外连续排列在除了DC子载波之外的区域中，而没有一个序列被分配给DC 副载波

    Method for transmitting and receiving additional control signals
    27.
    发明授权
    Method for transmitting and receiving additional control signals 有权
    发送和接收附加控制信号的方法

    公开(公告)号：US08295787B2

    公开(公告)日：2012-10-23

    申请号：US12450105

    申请日：2008-03-11

    申请人： Jin Sam Kwak ,  Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim

    发明人： Jin Sam Kwak ,  Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwon ,  Hyun Woo Lee ,  Dong Cheol Kim

    IPC分类号： H04B1/04

    CPC分类号： H04L5/0016 ,  H04L5/0053 ,  H04L5/04 ,  H04L5/06 ,  H04L5/12 ,  H04L27/3483

    摘要： A method for transmitting/receiving an additional control signal without any loss of bandwidth and power in an original Tx signal is disclosed. If the additional control signal is transmitted via the Tx signal composed of at least one of data and control signals, at least one of the amplitude and phase of the Tx signal of the time- and frequency-resource domain is modulated according to the additional control signal to be transmitted. The modulated Tx signal is transmitted to the receiver, so that the additional control signal can be transmitted irrespective of the original Tx signal. According to a modulation status of at least one of an amplitude and a phase of the Rx signal contained in the time- and frequency-resource domain, the additional control signal can be acquired.

    摘要翻译： 公开了一种在原始Tx信号中发送/接收附加控制信号而不损失带宽和功率的方法。 如果通过由数据和控制信号中的至少一个组成的Tx信号来传输附加控制信号，则根据附加控制调制时域和频率资源域的Tx信号的幅度和相位中的至少一个 要发送的信号。 调制的Tx信号被发送到接收机，使得附加控制信号可以被发送而不管原始Tx信号。 根据包含在时间和频率资源域中的Rx信号的幅度和相位中的至少一个的调制状态，可以获取附加控制信号。

    Method for adjusting RACH transmission against frequency offset
    29.
    发明授权
    Method for adjusting RACH transmission against frequency offset 有权
    用于调整频偏的方法

    公开(公告)号：US08295266B2

    公开(公告)日：2012-10-23

    申请号：US12447410

    申请日：2007-10-25

    申请人： Yeong Hyeon Kwon ,  Seung Hee Han ,  Hyun Woo Lee ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Min Seok Noh ,  Dragan Vujcic

    发明人： Yeong Hyeon Kwon ,  Seung Hee Han ,  Hyun Woo Lee ,  Jin Sam Kwak ,  Dong Cheol Kim ,  Min Seok Noh ,  Dragan Vujcic

    IPC分类号： H04J3/06

    CPC分类号： H04L1/08 ,  H04J13/0059 ,  H04J13/16 ,  H04L1/0007 ,  H04L27/2613 ,  H04W56/0035 ,  H04W74/0866

    摘要： A method for establishing RACH transmission to prepare against the frequency offset is disclosed. The method reduces the length of the RACH preamble even if the frequency offset exists, allows the RACH preamble to include a repeated structure (also called an iterative structure) or to use a specific sequence with less affect on the frequency offset, so that the Node-B can easily detect the RACH preamble. If different conditions are established in a high-speed UE and a low-speed UE, an amount of system overheads can be reduced as compared to another case in which an overall RACH condition has been prescribed for only the high-speed UE irrespective of the low-speed UE. And, the method determines whether the user equipment (UE) can estimate its speed according to the aforementioned RACH setup condition, and prescribes a detailed RACH access method according to the determined result.

    摘要翻译： 公开了一种用于建立RACH传输以准备抵消频偏的方法。 该方法即使存在频率偏移也减少了RACH前导码的长度，允许RACH前导码包括重复的结构（也称为迭代结构），或者使用对频率偏移影响较小的特定序列，使得节点 -B可以很容易地检测到RACH前导码。 如果在高速UE和低速UE中建立不同的条件，则与仅对高速UE规定了总体RACH条件的情况相比，可以减少系统开销的数量，而不管 低速UE。 并且，该方法确定用户设备（UE）是否可以根据上述RACH建立条件来估计其速度，并且根据确定的结果规定详细的RACH接入方法。