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    Apparatus and method for transmitting uplink control information in OFDMA communication systems
    2.
    发明授权
    Apparatus and method for transmitting uplink control information in OFDMA communication systems 有权
    用于在OFDMA通信系统中发送上行控制信息的装置和方法

    公开(公告)号：US07729234B2

    公开(公告)日：2010-06-01

    申请号：US11106216

    申请日：2005-04-14

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04B7/216 ,  G08C25/02

    CPC分类号： H04L5/023

    摘要： Disclosed are an apparatus and a method for transmitting uplink control information in an OFDMA communication system. The method, in which the uplink control information is transmitted using an ACK channel in the OFDMA communication system, includes the steps of receiving data bits of the uplink control information, outputting transmit symbols of sub-carriers by performing orthogonal modulation with respect to symbols for codewords of the received data bits, and inverse fast fourier transforming and transmitting a transmit signal including bundles of sub-carriers allocated the modulated transmit symbols.

    摘要翻译： 公开了一种在OFDMA通信系统中发送上行链路控制信息的装置和方法。 在OFDMA通信系统中使用ACK信道发送上行链路控制信息的方法包括以下步骤：接收上行链路控制信息的数据比特，通过对符号进行正交调制，输出子载波的发送符号， 接收数据位的码字，以及反向快速傅里叶变换和发送包括分配调制发送符号的子载波束的发送信号。

    Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system
    3.
    发明授权
    Method and apparatus for transmitting uplink acknowledgement information in an OFDMA communication system 有权
    用于在OFDMA通信系统中发送上行确认信息的方法和装置

    公开(公告)号：US07586834B2

    公开(公告)日：2009-09-08

    申请号：US11141155

    申请日：2005-05-31

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00

    CPC分类号： H04L27/30 ,  H04L1/1692 ,  H04L1/1829 ,  H04L1/1867

    摘要： A method and apparatus for transmitting uplink acknowledge information (ACK) in a communication system using an orthogonal frequency division multiple access (OFDMA) scheme. The method includes receiving a data bit for the uplink ACK; outputting codewords corresponding to the data bit; performing quadrature phase shift keying (QPSK) modulation on symbols for ACK vector indexes corresponding to the codewords for the received data bit; performing inverse fast Fourier transform (IFFT) on a transmission signal having subcarrier clusters to which the modulated transmission symbols are allocated; and transmitting the IFFT-processed transmission signal.

    摘要翻译： 一种用于在使用正交频分多址（OFDMA）方案的通信系统中发送上行确认信息（ACK）的方法和装置。 该方法包括接收用于上行链路ACK的数据比特; 输出与该数据比特对应的码字; 对与所接收的数据位的码字相对应的ACK向量索引的符号执行正交相移键控（QPSK）调制; 对具有分配有调制的发送符号的子载波簇的发送信号进行快速傅立叶逆变换（IFFT）; 并发送经IFFT处理的传输信号。

    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system
    4.
    发明授权
    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system 有权
    用于在OFDMA通信系统中发送上行链路快速反馈信息的方法和装置

    公开(公告)号：US07508751B2

    公开(公告)日：2009-03-24

    申请号：US11142708

    申请日：2005-06-01

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04L27/00 ,  H04B7/00

    CPC分类号： H04L27/2602 ,  H04L1/0028 ,  H04L1/0073 ,  H04L5/023 ,  H04L27/2627

    摘要： An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel encoder selects information data for uplink fast feedback information, and determines a codeword from a pre-determined codeword set corresponding to the selected information data. A non-coherent modulator chooses transmission symbols by performing orthogonal modulation according to the determined codeword based on a predetermined modulation pattern, and maps the chosen symbols into sub-carriers. An inverse fast Fourier transform (IFFT) block performs an inverse fast Fourier transform (IFFT) on the mapped symbols and transmits the IFFT processed mapped symbols.

    摘要翻译： 一种用于在正交频分多址（OFDMA）通信系统中使用快速反馈信道发送上行快速反馈信息的装置和方法。 信道编码器选择用于上行链路快速反馈信息的信息数据，并且从对应于所选择的信息数据的预定码字集合确定码字。 非相干调制器通过根据所确定的码字基于预定的调制模式执行正交调制来选择发送符号，并将所选择的符号映射成子载波。 逆快速傅里叶变换（IFFT）块对映射符号执行快速傅里叶逆变换（IFFT），并发送IFFT处理的映射符号。

    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system
    5.
    发明申请
    Method and apparatus for transmitting uplink fast feedback information in an OFDMA communication system 有权
    用于在OFDMA通信系统中发送上行链路快速反馈信息的方法和装置

    公开(公告)号：US20050265227A1

    公开(公告)日：2005-12-01

    申请号：US11142708

    申请日：2005-06-01

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04L1/00 ,  H04L5/02 ,  H04L27/26

    CPC分类号： H04L27/2602 ,  H04L1/0028 ,  H04L1/0073 ,  H04L5/023 ,  H04L27/2627

    摘要： An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel encoder generates uplink fast feedback information to be transmitted, and outputs codewords designed such that a minimum Hamming distance between the codewords is maximized, according to the uplink fast feedback information. A non-coherent modulator performs orthogonal modulation on transmission symbols corresponding to the codewords and allocates the orthogonal-modulated transmission symbols to subcarrier cluster. An inverse fast Fourier transform (IFFT) block performs IFFT on a transmission signal having the subcarrier cluster and transmits the IFFT-processed transmission signal.

    摘要翻译： 一种用于在正交频分多址（OFDMA）通信系统中使用快速反馈信道发送上行快速反馈信息的装置和方法。 信道编码器生成要发送的上行链路快速反馈信息，并且输出被设计为使得码字之间的最小汉明距离最大化的码字，根据上行链路快速反馈信息。 非相干调制器对与码字对应的发送符号执行正交调制，并将正交调制的发送符号分配给副载波簇。 逆快速傅里叶变换（IFFT）块对具有子载波簇的发送信号执行IFFT，并发送经IFFT处理的发送信号。

    Apparatus and method for transmitting uplink control information in OFDMA communication systems
    6.
    发明申请
    Apparatus and method for transmitting uplink control information in OFDMA communication systems 有权
    用于在OFDMA通信系统中发送上行链路控制信息的装置和方法

    公开(公告)号：US20050232138A1

    公开(公告)日：2005-10-20

    申请号：US11106216

    申请日：2005-04-14

    申请人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    发明人： Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Jeong-Heon Kim ,  Hee-Sang Seo ,  Jeong-Tae Oh

    IPC分类号： H04J11/00 ,  H04L5/02

    CPC分类号： H04L5/023

    摘要： Disclosed are an apparatus and a method for transmitting uplink control information in an OFDMA communication system. The method, in which the uplink control information is transmitted using an ACK channel in the OFDMA communication system, includes the steps of receiving data bits of the uplink control information, outputting transmit symbols of sub-carriers by performing orthogonal modulation with respect to symbols for codewords of the received data bits, and inverse fast fourier transforming and transmitting a transmit signal including bundles of sub-carriers allocated the modulated transmit symbols.

    摘要翻译： 公开了一种在OFDMA通信系统中发送上行链路控制信息的装置和方法。 在OFDMA通信系统中使用ACK信道发送上行链路控制信息的方法包括以下步骤：接收上行链路控制信息的数据比特，通过对符号进行正交调制，输出子载波的发送符号， 接收数据位的码字，以及反向快速傅里叶变换和发送包括分配调制发送符号的子载波束的发送信号。

    Apparatus and method for interference cancellation in a broadband wireless communication system
    8.
    发明授权
    Apparatus and method for interference cancellation in a broadband wireless communication system 有权
    宽带无线通信系统中干扰消除的装置和方法

    公开(公告)号：US08149957B2

    公开(公告)日：2012-04-03

    申请号：US12061146

    申请日：2008-04-02

    申请人： Jeong-Tae Oh ,  Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    发明人： Jeong-Tae Oh ,  Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    IPC分类号： H04L27/06

    CPC分类号： H04L25/0224 ,  H04L5/0048 ,  H04L25/0244 ,  H04L25/03305 ,  H04L25/03318

    摘要： An apparatus and a method for interference cancellation in a broadband wireless communication system are provided. A receiving apparatus includes an estimator, a channel compensator, and a demodulator. The estimator estimates channels of a desired signal and at least one interference signal, estimates noise, calculates a mean interference power of each interference signal, and calculates a mean noise power. The channel compensator channel-compensates burst data. The demodulator calculates a noise variance value by adding the mean noise power to the at least one mean interference power and creates Log Likelihood Ratio (LLR) by demodulating the channel-compensated data.

    摘要翻译： 提供了一种用于宽带无线通信系统中的干扰消除的装置和方法。 接收装置包括估计器，信道补偿器和解调器。 估计器估计期望信号的信道和至少一个干扰信号，估计噪声，计算每个干扰信号的平均干扰功率，并且计算平均噪声功率。 通道补偿器通道补偿突发数据。 解调器通过将平均噪声功率加到至少一个平均干扰功率来计算噪声方差值，并通过解调信道补偿数据产生对数似然比（LLR）。

    Apparatus and method for signal processing in a handover in a BWA communication
    9.
    发明申请
    Apparatus and method for signal processing in a handover in a BWA communication 审中-公开
    BWA通信中的切换中的信号处理装置和方法

    公开(公告)号：US20060009212A1

    公开(公告)日：2006-01-12

    申请号：US11167664

    申请日：2005-06-27

    申请人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    发明人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    IPC分类号： H04Q7/20

    CPC分类号： H04B17/336

    摘要： An apparatus and method for processing received signals in a handover of a MS in a BWA communication system including a plurality of BSs capable of providing a service to the MS. According to the method, the MS receives signals of different BSs and detects preambles for each BS from the received signals. Further, the MS measures channel quality information corresponding to each of the detected preambles and compares the measured channel quality information with a preset threshold value. Further, the MS processes the signals received from the different BSs based on a result obtained by comparing the measured channel quality information with the preset threshold value.

    摘要翻译： 一种用于在包括能够向MS提供服务的多个BS的BWA通信系统中的MS的切换中处理接收信号的装置和方法。 根据该方法，MS接收不同BS的信号，并根据接收到的信号检测每个BS的前同步码。 此外，MS测量与每个检测到的前导码相对应的信道质量信息，并将测量的信道质量信息与预设阈值进行比较。 此外，MS基于通过将测量的信道质量信息与预设阈值进行比较而获得的结果来处理从不同BS接收的信号。

    Channel estimating apparatus and method for use in a broadband wireless communication system
    10.
    发明授权
    Channel estimating apparatus and method for use in a broadband wireless communication system 有权
    用于宽带无线通信系统的信道估计装置和方法

    公开(公告)号：US08040987B2

    公开(公告)日：2011-10-18

    申请号：US11943775

    申请日：2007-11-21

    申请人： Jeong-Tae Oh ,  Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    发明人： Jeong-Tae Oh ,  Myung-Kwang Byun ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    IPC分类号： H04B1/10

    CPC分类号： H04L25/0208 ,  H04L5/0048 ,  H04L25/0228

    摘要： A Channel estimating apparatus and method for use in a broadband wireless communication system are provided. The receiving method includes determining a control unit for a channel estimation using burst allocation information of selected sectors; extracting pilot symbols from received data based on the control unit; and acquiring a channel estimate value for each transmission unit by performing a Joint Channel Estimation (JCE) with the extracted pilot symbols that are based on the control unit.

    摘要翻译： 提供了一种用于宽带无线通信系统中的信道估计装置和方法。 所述接收方法包括使用所选扇区的突发分配信息来确定用于信道估计的控制单元; 基于所述控制单元从接收到的数据提取导频符号; 以及通过使用基于所述控制单元的所提取的导频符号执行联合信道估计（JCE）来获取每个传输单元的信道估计值。