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    Optimum perturbation apparatus and method in a multi-antenna multi-user communication system
    1.
    发明授权
    Optimum perturbation apparatus and method in a multi-antenna multi-user communication system 有权
    多天线多用户通信系统中的最佳扰动装置和方法

    公开(公告)号：US07974349B2

    公开(公告)日：2011-07-05

    申请号：US11650470

    申请日：2007-01-08

    申请人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

    发明人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

    IPC分类号： H04L27/00

    CPC分类号： H04L25/0248 ,  H04B7/0452 ,  H04J11/0033

    摘要： An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value Decompositin (SVD) and a distortion value of the modulation symbols is estimated using the eigenvectors and the eigenvalues to minimize noise and interference power. The modulation symbols are precoded by combining the modulation symbols with the estimated distortion value.

    摘要翻译： 提供了一种多天线多用户通信系统中的最佳扰动装置和方法。 在最佳扰动方法中，在接收到调制符号后，通过单值解码（SVD）将信道响应分解为特征值和特征向量，并使用特征向量和特征值估计调制符号的失真值，以最小化噪声和干扰功率。 通过将调制符号与估计的失真值组合来对调制符号进行预编码。

    Optimum perturbation apparatus and method in a multi-antenna multi-user communication system
    2.
    发明申请
    Optimum perturbation apparatus and method in a multi-antenna multi-user communication system 有权
    多天线多用户通信系统中的最佳扰动装置和方法

    公开(公告)号：US20100232531A1

    公开(公告)日：2010-09-16

    申请号：US11650470

    申请日：2007-01-08

    申请人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

    发明人： Seung-Hoon Nam ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Joo-Hwan Chun ,  Eun-Yong Kim

    IPC分类号： H04L1/02

    CPC分类号： H04L25/0248 ,  H04B7/0452 ,  H04J11/0033

    摘要： An optimum perturbation apparatus and method in a multi-antenna, multi-user communication system are provided. In the optimum perturbation method, upon receipt of modulation symbols, channel responses are decomposed into eigenvalues and eigenvectors by Single Value Decompositin (SVD) and a distortion value of the modulation symbols is estimated using the eigenvectors and the eigenvalues to minimize noise and interference power. The modulation symbols are precoded by combining the modulation symbols with the estimated distortion value.

    摘要翻译： 提供了一种多天线多用户通信系统中的最佳扰动装置和方法。 在最佳扰动方法中，在接收到调制符号后，通过单值解码（SVD）将信道响应分解为特征值和特征向量，并使用特征向量和特征值估计调制符号的失真值，以最小化噪声和干扰功率。 通过将调制符号与估计的失真值组合来对调制符号进行预编码。

    Apparatus and method for communicating data in hybrid diversity mode in broadband wireless communication system
    6.
    发明申请
    Apparatus and method for communicating data in hybrid diversity mode in broadband wireless communication system 审中-公开
    用于在宽带无线通信系统中以混合分集方式传送数据的装置和方法

    公开(公告)号：US20070191065A1

    公开(公告)日：2007-08-16

    申请号：US11650357

    申请日：2007-01-05

    申请人： Jong-Hyeuk Lee ,  Myeon-kyun Cho ,  Seung-Hoon Nam ,  Bang-Chul Jung ,  Dan-Keun Sung ,  Sung-Soo Cho ,  Young-Jun Hong

    发明人： Jong-Hyeuk Lee ,  Myeon-kyun Cho ,  Seung-Hoon Nam ,  Bang-Chul Jung ,  Dan-Keun Sung ,  Sung-Soo Cho ,  Young-Jun Hong

    IPC分类号： H04M1/00

    CPC分类号： H04L5/006 ,  H04L1/02 ,  H04L5/0007 ,  H04L5/0044

    摘要： Provided is an apparatus and method for communicating data in a hybrid diversity mode in a broadband wireless communication system. In a method for transmitting data to a subscriber station (SS) in the broadband wireless communication system, null subbands are determined using feedback information received from the SS. TX data to be transmitted to the SS are mapped to a diversity zone from which the null subbands has been excluded. The mapped data are OFDM-modulated and transmitted to the SS. In this way, frequency subbands with poor channel conditions are excluded from data transmission. Accordingly, it is possible to enhance the FER performance and transmit data at a high MCS level.

    摘要翻译： 提供了一种用于在宽带无线通信系统中以混合分集模式传送数据的装置和方法。 在宽带无线通信系统中向用户站（SS）发送数据的方法中，使用从SS接收的反馈信息来确定空子带。 要发送到SS的TX数据被映射到已经排除了空子带的分集区域。 映射的数据被OFDM调制并传输到SS。 以这种方式，信道条件较差的频率子带从数据传输中排除。 因此，可以提高FER性能并在高MCS级别发送数据。

    Transmitting/receiving apparatus and method for cell search in a broadband wireless communications system
    7.
    发明申请
    Transmitting/receiving apparatus and method for cell search in a broadband wireless communications system 审中-公开
    用于宽带无线通信系统中的小区搜索的发送/接收装置和方法

    公开(公告)号：US20070041348A1

    公开(公告)日：2007-02-22

    申请号：US11493449

    申请日：2006-07-26

    申请人： Jong-Hyung Kwun ,  Eung-Sun Kim ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Hyun-Kyu Yu ,  Daesik Hong

    发明人： Jong-Hyung Kwun ,  Eung-Sun Kim ,  Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Hyun-Kyu Yu ,  Daesik Hong

    IPC分类号： H04B7/216

    CPC分类号： H04L27/2657 ,  H04B1/70735 ,  H04J11/0069 ,  H04L5/0017 ,  H04L5/0048 ,  H04L25/03866 ,  H04L27/2613

    摘要： Disclosed is transmitting/receiving apparatus and method for efficient cell search in a broadband wireless communication system using multiple carriers. The apparatus includes a BS generating an SCH signal by mapping predetermined symbols to predetermined subcarriers according to a code group to which the BS belongs, code-multiplexing a TCH signal and a pilot channel signal mapped to a predetermined time-frequency area and scrambling the code-multiplexed signal with a predetermined scrambling code identifying the BS along a time axis first, time-multiplexing the SCH signal with the scrambled signal, OFDM-modulating the time-multiplexed signal, and transmitting the OFDM-modulated signal.

    摘要翻译： 公开了在使用多个载波的宽带无线通信系统中用于高效小区搜索的发射/接收装置和方法。 该装置包括通过根据BS所属的代码组将预定符号映射到预定的子载波来生成SCH信号的BS，对TCH信号进行码复用和映射到预定的时频区域的导频信道信号， 首先确定沿着时间轴的BS的预定扰频码的多路复用信号，用加扰信号对SCH信号进行时分多路复用，对时间复用信号进行OFDM调制，以及发送OFDM调制信号。

    Apparatus and method for determining pilot pattern in a broadband wireless access communication system
    8.
    发明授权
    Apparatus and method for determining pilot pattern in a broadband wireless access communication system 有权
    用于在宽带无线接入通信系统中确定导频模式的装置和方法

    公开(公告)号：US07792201B2

    公开(公告)日：2010-09-07

    申请号：US11647949

    申请日：2006-12-29

    申请人： Jong-Hyeuk Lee ,  Myeon-Kyun Cho ,  Won-Kyu Paik ,  Jong-Soo Seo

    发明人： Jong-Hyeuk Lee ,  Myeon-Kyun Cho ,  Won-Kyu Paik ,  Jong-Soo Seo

    IPC分类号： H04K1/10

    CPC分类号： H04L27/261 ,  H04L1/0001 ,  H04L25/0222

    摘要： An apparatus and method for determining a pilot pattern in a Broadband Wireless Access (BWA) communication system are provided. In the pilot pattern determining method, an Orthogonal Frequency Division Multiplexing (OFDM) demodulator generates frequency-domain data by fast-Fourier-transform (FFT)-processing a received signal. A pilot pattern decider calculates a coherence bandwidth and a coherence time using subcarrier values received from the OFDM demodulator, and selects one of a plurality of pilot patterns according to the ratio of the coherence bandwidth to the coherence time.

    摘要翻译： 提供了一种用于在宽带无线接入（BWA）通信系统中确定导频模式的装置和方法。 在导频模式确定方法中，正交频分复用（OFDM）解调器通过对接收信号进行快速傅立叶变换（FFT）处理来生成频域数据。 导频模式决定器使用从OFDM解调器接收到的子载波值来计算相干带宽和相干时间，并且根据相干带宽与相干时间的比率选择多个导频模式中的一个。

    Apparatus and method for determining pilot pattern in a broadband wireless access communication system
    9.
    发明申请
    Apparatus and method for determining pilot pattern in a broadband wireless access communication system 有权
    用于在宽带无线接入通信系统中确定导频模式的装置和方法

    公开(公告)号：US20070153931A1

    公开(公告)日：2007-07-05

    申请号：US11647949

    申请日：2006-12-29

    申请人： Jong-Hyeuk Lee ,  Myeon-Kyun Cho ,  Won-Kyu Paik ,  Jong-Soo Seo

    发明人： Jong-Hyeuk Lee ,  Myeon-Kyun Cho ,  Won-Kyu Paik ,  Jong-Soo Seo

    IPC分类号： H04K1/10

    CPC分类号： H04L27/261 ,  H04L1/0001 ,  H04L25/0222

    摘要： An apparatus and method for determining a pilot pattern in a Broadband Wireless Access (BWA) communication system are provided. In the pilot pattern determining method, an Orthogonal Frequency Division Multiplexing (OFDM) demodulator generates frequency-domain data by fast-Fourier-transform (FFT)-processing a received signal. A pilot pattern decider calculates a coherence bandwidth and a coherence time using subcarrier values received from the OFDM demodulator, and selects one of a plurality of pilot patterns according to the ratio of the coherence bandwidth to the coherence time.

    摘要翻译： 提供了一种用于在宽带无线接入（BWA）通信系统中确定导频模式的装置和方法。 在导频模式确定方法中，正交频分复用（OFDM）解调器通过对接收信号进行快速傅立叶变换（FFT）处理来生成频域数据。 导频模式决定器使用从OFDM解调器接收到的子载波值来计算相干带宽和相干时间，并且根据相干带宽与相干时间的比率选择多个导频模式中的一个。

    Apparatus and method for dynamic channel allocation with low complexity in a multi-carrier communication system
    10.
    发明申请
    Apparatus and method for dynamic channel allocation with low complexity in a multi-carrier communication system 审中-公开
    在多载波通信系统中具有低复杂度的动态信道分配的装置和方法

    公开(公告)号：US20070121746A1

    公开(公告)日：2007-05-31

    申请号：US11605070

    申请日：2006-11-28

    申请人： Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Jong-Hyung Kwun ,  Woo-Hyun Seo ,  Daesik Hong

    发明人： Myeon-Kyun Cho ,  Jong-Hyeuk Lee ,  Jong-Hyung Kwun ,  Woo-Hyun Seo ,  Daesik Hong

    IPC分类号： H04K1/10

    CPC分类号： H04L27/2608 ,  H04L5/023

    摘要： A low-complexity dynamic channel allocation apparatus and method in a multi-carrier communication system are provided. In the low-complexity dynamic channel allocation method, subcarriers are initially allocated to total users and two users are selected from among all possible cases of two users out of the total users. The power gain of each of the subcarriers initially allocated to the selected two users is calculated, which can be generated by reallocating each subcarrier to the other user through subcarrier swapping. The power gains of the initially allocated subcarriers are ordered for each of the selected users and a pair of subcarriers with the greatest power gains for the two users are selected. Subcarriers are reallocated to the two users by swapping the selected subcarriers between the two users.

    摘要翻译： 提供了一种多载波通信系统中的低复杂度动态信道分配装置和方法。 在低复杂度动态信道分配方法中，初始分配副载波到总用户，并且从总用户中的两个用户的所有可能情况中选择两个用户。 计算最初分配给所选择的两个用户的每个子载波的功率增益，其可以通过通过子载波交换将每个子载波重新分配给另一个用户而产生。 为每个所选择的用户排序初始分配的子载波的功率增益，并且选择两个用户具有最大功率增益的一对子载波。 通过在两个用户之间交换所选择的子载波来将子载波重新分配给两个用户。