METHOD FOR TRANSMITTING SYNCHRONIZATION CHANNEL USING MULTI-ANTENNA
    91.
    发明申请
    METHOD FOR TRANSMITTING SYNCHRONIZATION CHANNEL USING MULTI-ANTENNA 有权
    使用多天线发送同步信道的方法

    公开(公告)号:US20110090997A1

    公开(公告)日:2011-04-21

    申请号:US12988302

    申请日:2009-04-17

    IPC分类号: H04L7/00

    摘要: A method for transmitting a synchronization channel using multi-antenna is disclosed. In a method for transmitting a synchronization channel for using a synchronization channel as a phase reference when decoding a broadcast channel, the method includes using a pre-decided shift value for each antenna, wherein the shift value is pre-decided with a user equipment, so as to apply circular shifts to sequences of the synchronization channel, and transmitting the sequences having the circular shifts applied thereto from a base station to the user equipment. Herein, space frequency/time block codes (SFBC/STBC) may be applied to the broadcast channel. In performing time/frequency domain synchronization in the synchronization channel, regardless of the number of transmission antennae used by the base station when transmitting signals, the synchronization process may be performed. Also, multi-antenna gain may be obtained when transmitting the synchronization channel. Furthermore, channel estimation may be performed for each antenna, and by applying transmission diversity methods to the BCH/control channel/data channel and so on, the performance of the present invention may also be enhanced.

    摘要翻译: 公开了一种使用多天线发送同步信道的方法。 在对广播频道进行解码的同步信道的同步信道的发送方法中,作为相位基准的方法,该方法包括对每个天线使用预定的移位值,其中,移位值由用户设备预先决定, 以便对同步信道的序列应用循环移位,并且将从基站向其发送的具有循环移位的序列发送给用户设备。 这里,空间频率/时间块码(SFBC / STBC)可以应用于广播频道。 在同步信道中执行时间/频域同步时,无论发射信号时基站使用的发射天线的数量如何,都可以执行同步处理。 此外,当发送同步信道时可以获得多天线增益。 此外,可以对每个天线执行信道估计,并且通过将传输分集方法应用于BCH /控制信道/数据信道等,也可以提高本发明的性能。

    METHOD OF TRANSMITTING A WIDEBAND FRAME
    94.
    发明申请
    METHOD OF TRANSMITTING A WIDEBAND FRAME 有权
    传输宽边框的方法

    公开(公告)号:US20100329384A1

    公开(公告)日:2010-12-30

    申请号:US12677439

    申请日:2008-09-22

    IPC分类号: H04L27/00

    摘要: A method of transmitting a wideband frame for a wideband system having backward compatibility with a narrowband system includes configuring a wideband carrier by using a set of base carriers, wherein a bandwidth of the base carriers corresponds to a bandwidth of the narrowband system and any one of center frequencies of the base carriers is the same as a center frequency of the narrowband system, and allocating all or some of guard subcarriers between the two adjacent base carriers to a traffic channel when a center frequency spacing between two adjacent base carriers is an integer multiple of a subcarrier spacing. Accordingly, the method can be used to support backward compatibility with the narrowband system. Further, the method can be equally used when the narrowband system co-exists with the wideband system in a guard band defined in a narrowband of a new system.

    摘要翻译: 对于具有与窄带系统具有向后兼容性的宽带系统的宽带帧的发送方法包括:通过使用一组基站载波来配置宽带载波,其中,所述基站载波的带宽对应于所述窄带系统的带宽, 基站载波的中心频率与窄带系统的中心频率相同,并且当两个相邻基站载波之间的中心频率间隔为整数倍时,将两个相邻基站载波之间的全部或一些保护副载波分配给业务信道 的子载波间隔。 因此,该方法可以用于支持与窄带系统的向后兼容性。 此外,当窄带系统与限定在新系统的窄带中的保护频带中的宽带系统共存时,该方法可以同样地使用。

    METHOD FOR TRANSMITTING SIGNAL IN MULTIPLE ANTENNA SYSTEM
    95.
    发明申请
    METHOD FOR TRANSMITTING SIGNAL IN MULTIPLE ANTENNA SYSTEM 有权
    用于在多个天线系统中发射信号的方法

    公开(公告)号:US20100284477A1

    公开(公告)日:2010-11-11

    申请号:US12739713

    申请日:2008-11-12

    IPC分类号: H04L27/28

    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
    98.
    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

    IPC分类号: H04B1/00

    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
    100.
    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

    IPC分类号: H04B1/04

    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。