Method and system for performing initial operation in a frequency overlay communication system
    63.
    发明申请
    Method and system for performing initial operation in a frequency overlay communication system 审中-公开
    用于在频率覆盖通信系统中执行初始操作的方法和系统

    公开(公告)号:US20060291414A1

    公开(公告)日:2006-12-28

    申请号:US11476986

    申请日:2006-06-28

    IPC分类号: H04Q7/00 H04J3/24

    CPC分类号: H04W48/18 H04B7/12

    摘要: A method for performing an initial operation of a mobile station (MS) that uses a first frequency band, in a frequency overlay communication system having the first frequency band including a plurality of sub-frequency bands. The method includes performing correlation on a full frequency band in units of the first frequency band, receiving broadcast information through a frequency band having a maximum correlation value, and performing an initial access to a base station (BS) through the frequency band having the maximum correlation value if a frequency bandwidth of the BS acquired from the broadcast information is narrower than or equal to a selected frequency bandwidth of the MS.

    摘要翻译: 一种用于在具有包括多个子频带的第一频带的频率覆盖通信系统中执行使用第一频带的移动站(MS)的初始操作的方法。 该方法包括以第一频带为单位的全频段执行相关,通过具有最大相关值的频带接收广播信息,并通过具有最大相关值的频带对基站(BS)进行初始接入 如果从广播信息获取的BS的频带宽度窄于或等于该MS的选定频带宽度,则相关值。

    Apparatus and method for transmitting and receiving a cell identification code in a mobile communication system
    64.
    发明申请
    Apparatus and method for transmitting and receiving a cell identification code in a mobile communication system 有权
    用于在移动通信系统中发送和接收小区识别码的装置和方法

    公开(公告)号:US20050265293A1

    公开(公告)日:2005-12-01

    申请号:US11141115

    申请日:2005-05-31

    IPC分类号: H04L27/26 H04B1/707 H04B7/216

    CPC分类号: H04B1/7083

    摘要: An apparatus and method for generating an octal code for identifying cells in a mobile communication system. In the octal code generating apparatus, a binary code generator generates a binary code with a predetermined minimum Hamming distance. A column permutator permutes the order of columns of the binary code in a predetermined interleaving method. A 3-bit combiner generates a plurality of codewords using the column-permuted binary code as a generator matrix and groups the bits of each of the codewords by threes. An octal code generator converts the 3-bit grouped binary codewords to octal code sequences.

    摘要翻译: 一种用于在移动通信系统中生成用于识别小区的八进制码的装置和方法。 在八进制代码生成装置中,二进制代码生成器生成具有预定的最小汉明距离的二进制代码。 列排列器以预定的交织方法来排列二进制码列的顺序。 3位组合器使用列排列的二进制码作为生成器矩阵生成多个码字,并将每个码字的比特分组三分之一。 八进制代码生成器将3位分组的二进制码字转换为八进制码序列。

    Apparatus and method for estimating uplink frequency offset in wireless communication system
    67.
    发明授权
    Apparatus and method for estimating uplink frequency offset in wireless communication system 有权
    用于估计无线通信系统中的上行频率偏移的装置和方法

    公开(公告)号:US07949034B2

    公开(公告)日:2011-05-24

    申请号:US11787410

    申请日:2007-04-16

    IPC分类号: H04B1/69

    摘要: Provided is an apparatus and method for estimating an uplink frequency offset in a wireless communication system. In a receiving apparatus of a wireless communication system using a random access channel composed of two equivalent sequences, the apparatus includes a channel receiver which extracts samples corresponding to the two sequences from an input random access channel signal; a correlator which computes first and second correlation values by correlating preceding and trailing samples among the samples output from the channel receiver with a predetermined sequence; and a frequency offset estimator which estimates a frequency offset by using a ratio of the second correlation value to the first correlation value output from the correlator.

    摘要翻译: 提供了一种用于估计无线通信系统中的上行链路频率偏移的装置和方法。 在使用由两个等效序列组成的随机接入信道的无线通信系统的接收装置中,该装置包括:信道接收机,从输入的随机接入信道信号中提取与两个序列对应的样本; 相关器,其通过使从信道接收机输出的样本中的前和后样本与预定序列相关来计算第一和第二相关值; 以及频率偏移估计器,其通过使用从相关器输出的第二相关值与第一相关值的比值来估计频率偏移。

    Apparatus and method for encoding/decoding space time block code in a mobile communication system using multiple input multiple output scheme
    69.
    发明授权
    Apparatus and method for encoding/decoding space time block code in a mobile communication system using multiple input multiple output scheme 有权
    在使用多输入多输出方案的移动通信系统中对空间时间块码进行编码/解码的装置和方法

    公开(公告)号:US07620117B2

    公开(公告)日:2009-11-17

    申请号:US11124888

    申请日:2005-05-09

    IPC分类号: H04L27/00

    CPC分类号: H04L1/0643

    摘要: Disclosed is an apparatus and method for encoding/decoding a space time block code in a mobile communication system using a multiple input multiple output scheme. In a transmitter employing a plurality of transmit antennas in the mobile communication system, if a signal to be transmitted is input, the transmit signal is pre-encoded according to a preset coding scheme, the pre-encoded signal is space-time mapped according to a number of the transmit antennas to employ a preset space time block coding scheme, and the space-time mapped signal is transmitted through the transmit antennas by applying the preset space time block coding scheme to the space-time mapped signal.

    摘要翻译: 公开了一种使用多输入多输出方案在移动通信系统中对时空块码进行编码/解码的装置和方法。 在移动通信系统中采用多个发射天线的发射机中,如果要发射的信号被输入,则根据预设的编码方案对发射信号进行预编码,根据预编码信号进行空时映射 使用预设空间时间块编码方案的多个发送天线,并且通过将预设空间时间块编码方案应用于时空映射信号,通过发送天线发送空时映射信号。

    Apparatus and method for space-frequency block coding/decoding in a communication system
    70.
    发明授权
    Apparatus and method for space-frequency block coding/decoding in a communication system 有权
    在通信系统中用于空间频率块编码/解码的装置和方法

    公开(公告)号:US07606320B2

    公开(公告)日:2009-10-20

    申请号:US11156689

    申请日:2005-06-20

    IPC分类号: H04B7/02

    CPC分类号: H04B7/068

    摘要: An apparatus and method for SFBC coding and decoding in a communication system using a plurality of (Nt) Tx antennas are provided. In a transmitter using Nt transmit antennas, a pre-coder pre-codes an input symbol sequence using a pre-coding matrix. The pre-coding matrix is produced by puncturing a unitary matrix in a predetermined method. An encoder generates a plurality of vectors by grouping the symbols of the pre-coded symbol sequence by twos, space-frequency maps each of the vectors by encoding each of the vectors in an Alamouti coding scheme, and provides each of the space-frequency mapped symbols to a predetermined OFDM modulator.

    摘要翻译: 提供了一种在使用多个(Nt)个Tx天线的通信系统中用于SFBC编码和解码的装置和方法。 在使用Nt个发射天线的发射机中,预编码器使用预编码矩阵对输入符号序列进行预编码。 预编码矩阵是通过以预定方法对单一矩阵进行打孔而产生的。 编码器通过对预编码符号序列的符号进行二进制分组来生成多个向量,通过以Alamouti编码方案对每个向量进行编码,对每个向量进行空间频率映射,并且提供每个空间频率映射 符号到预定的OFDM调制器。