Method and apparatus for reference signal generation in wireless communication system
    3.
    发明授权
    Method and apparatus for reference signal generation in wireless communication system 有权
    无线通信系统中参考信号生成的方法和装置

    公开(公告)号:US08428157B2

    公开(公告)日:2013-04-23

    申请号:US12024062

    申请日:2008-01-31

    IPC分类号: H04L27/06

    CPC分类号: H04L27/2613

    摘要: To provide a reference signal generation method and apparatus capable of obtaining many reference signal sequences having excellent properties. CAZAC sequences that satisfy the condition that the absolute value (|N−L|) of a difference between a sub-carrier number N in a resource block and a CAZAC sequence length L is not larger than a threshold value K are selected, and a sequence having a largest among greatest prime factors among the prime factors constituting the sequence length(s) is further selected from the initially selected sequences. Then, a reference signal sequence(s) is generated from a selected CAZAC sequence.

    摘要翻译: 提供能够获得许多具有优异特性的参考信号序列的参考信号产生方法和装置。 选择满足资源块中的子载波号N与CAZAC序列长度L之间的差的绝对值(| NL |)不大于阈值K的条件的CAZAC序列,并且具有 构成序列长度的主要因素中最大的主要因素中最大的一个是从最初选择的序列中选择的。 然后,从所选择的CAZAC序列生成参考信号序列。

    Multi-user receiving apparatus converting SC-FDMA received signals of all users to signals in a frequency domain commonly
    5.
    发明申请
    Multi-user receiving apparatus converting SC-FDMA received signals of all users to signals in a frequency domain commonly 有权
    多用户接收装置将所有用户的SC-FDMA接收信号转换成频域中的信号

    公开(公告)号:US20070070879A1

    公开(公告)日:2007-03-29

    申请号:US11524941

    申请日:2006-09-22

    IPC分类号: H04J11/00

    摘要: A multi-user receiving apparatus is provided for achieving a reduction in the amount of processing for single-carrier FDMA signals and an improvement in reception characteristics. A DFT unit converts single-carrier FDMA received signals of all users to signals in a frequency domain commonly. A demapping unit selects part of sub-carriers for each user from sub-carriers supplied from the DFT unit. A reception filter separates a user signal and suppresses noise. A demodulator demodulates the user signal, and detects a timing thereof.

    摘要翻译: 提供了一种多用户接收装置,用于实现单载波FDMA信号的处理量的减少和接收特性的提高。 DFT单元将所有用户的单载波FDMA接收信号通常转换为频域中的信号。 解映射单元从DFT单元提供的副载波中为每个用户选择子载波的一部分。 接收滤波器分离用户信号并抑制噪声。 解调器解调用户信号,并检测其定时。

    Wireless communication system, pilot sequence allocation apparatus, pilot sequence allocating method used for the system and apparatus, and mobile station used in the method
    7.
    发明授权
    Wireless communication system, pilot sequence allocation apparatus, pilot sequence allocating method used for the system and apparatus, and mobile station used in the method 有权
    无线通信系统,导频序列分配装置,用于系统和装置的导频序列分配方法,以及该方法中使用的移动台

    公开(公告)号:US08165159B2

    公开(公告)日:2012-04-24

    申请号:US11790599

    申请日:2007-04-26

    IPC分类号: H04Q7/00

    摘要: The present invention provides a method for allocating a pilot sequence that can obtain effect of reducing interference by combining received pilot blocks when sequence such as the CAZAC sequence as a pilot sequence is used. In the present invention, the pilot sequences by the number of 2K are divided into K sets of {C—1, C—2}, {C—3, C—4}, . . . , {C_(2K−1), C—2K} and allocated a set of the pilot sequences to each of the cells #1 to #K. For example, pilot sequences: {C—1, C—2} are allocated to pilot blocks (SB #1, #2) of the cell #1, pilot sequences: {C—3, C—4} are allocated to pilot blocks (SB #1, #2) of the cell #2, pilot sequences: {C—5, C—6} are allocated to pilot blocks (SB #1, #2) of the cell #3, and pilot sequences {C—7, C—8} are allocated to two pilot blocks (SB #1, #2) of the cell #4.

    摘要翻译: 本发明提供了一种用于分配导频序列的方法,当使用诸如CAZAC序列之类的序列作为导频序列时,可以通过组合接收到的导频块来获得减少干扰的效果。 在本发明中,2K的导频序列被划分为{C-1,C-2},{C-3,C-4}的K个集合。 。 。 ,{C_(2K-1),C-2K},并将一组导频序列分配给每个小区#1至#K。 例如,导频序列:{C-1,C-2}分配给小区#1的导频块(SB#1,#2),导频序列:{C-3,C-4} 小区#2的块(SB#1,#2),导频序列{C-5,C-6}分配给小区#3的导频块(SB#1,#2),导频序列{ C-7,C-8}分配给小区#4的两个导频块(SB#1,#2)。

    Mobile communication system, transmitting equipment and transmission signal generation method
    8.
    发明授权
    Mobile communication system, transmitting equipment and transmission signal generation method 有权
    移动通信系统,传输设备和传输信号的生成方法

    公开(公告)号:US08155173B2

    公开(公告)日:2012-04-10

    申请号:US11924683

    申请日:2007-10-26

    IPC分类号: H04B1/38 H04L5/16

    摘要: A transmitting equipment is used in a mobile communication system in which a signal obtained by cyclically shifting a predetermined sequence is used for communication. An inverse fast Fourier transform device of the transmitting equipment converts a signal obtained by signal processing on a predetermined sequence in a frequency region into a time region by inverse fast Fourier transform. A cyclic shift device cyclically shifts by a predetermined amount of shift the sequence in the signal converted into the time region by the inverse fast Fourier transform device.

    摘要翻译: 在将通过循环移位预定序列而获得的信号用于通信的移动通信系统中使用发送设备。 发送设备的快速傅立叶逆变换装置将通过频率区域中的预定序列的信号处理获得的信号通过快速傅立叶逆变换逆变换为时间区域。 循环移位装置通过逆快速傅里叶变换装置循环移位在被转换成时间区域的信号中的预定量的序列。

    Band limiting method and wireless communication system
    9.
    发明授权
    Band limiting method and wireless communication system 有权
    频带限制方法和无线通信系统

    公开(公告)号:US07746807B2

    公开(公告)日:2010-06-29

    申请号:US12279152

    申请日:2007-01-24

    IPC分类号: H04J1/16 H04H7/30

    摘要: A receiver estimates a channel quality. A transmitter amplifies a signal by a gain proportional to a difference between a required signal-to-noise power ratio and channel quality information, which is an estimation result of the channel quality, and transmits the signal so that the receiver can obtain the signal-to-noise power ratio. In this case, the receiver or the transmitter determines a roll-off rate of an adaptive filter based on the channel quality information. The transmitter uses the adaptive filter of the determined roll-off rate to filter and transmit the signal.

    摘要翻译: 接收机估计信道质量。 发射机通过与所需信噪比功率比和作为信道质量的估计结果的信道质量信息之间的差成比例的增益放大信号,并发送信号,使得接收机可以获得信号 - 噪声功率比。 在这种情况下,接收机或发射机基于信道质量信息确定自适应滤波器的滚降速率。 发射机使用所确定的滚降速率的自适应滤波器来过滤和发送信号。

    Multi-user receiving apparatus converting SC-FDMA received signals of all users to signals in a frequency domain commonly
    10.
    发明授权
    Multi-user receiving apparatus converting SC-FDMA received signals of all users to signals in a frequency domain commonly 有权
    多用户接收装置将所有用户的SC-FDMA接收信号转换成频域中的信号

    公开(公告)号:US07668076B2

    公开(公告)日:2010-02-23

    申请号:US11524941

    申请日:2006-09-22

    IPC分类号: H04J11/00

    摘要: A multi-user receiving apparatus is provided for achieving a reduction in the amount of processing for single-carrier FDMA signals and an improvement in reception characteristics. A DFT unit converts single-carrier FDMA received signals of all users to signals in a frequency domain commonly. A demapping unit selects part of sub-carriers for each user from sub-carriers supplied from the DFT unit. A reception filter separates a user signal and suppresses noise. A demodulator demodulates the user signal, and detects a timing thereof.

    摘要翻译: 提供了一种多用户接收装置,用于实现单载波FDMA信号的处理量的减少和接收特性的提高。 DFT单元将所有用户的单载波FDMA接收信号通常转换为频域中的信号。 解映射单元从DFT单元提供的副载波中为每个用户选择子载波的一部分。 接收滤波器分离用户信号并抑制噪声。 解调器解调用户信号,并检测其定时。