Low density parity check code-based hybrid automatic repeat request method
    11.
    发明授权
    Low density parity check code-based hybrid automatic repeat request method 有权
    低密度奇偶校验码混合自动重传请求方法

    公开(公告)号:US07934138B2

    公开(公告)日:2011-04-26

    申请号:US11703595

    申请日:2007-02-07

    IPC分类号: H03M13/00

    摘要: A transmission method based on a Hybrid Automatic Repeat Request (HARQ) scheme for in a communication system. A codeword is generated using a Low Density Parity Check (LDPC) code. Parity bits of the codeword are classified on a basis of a transmission priority. Parity bits with an identical transmission priority are grouped. An information bit group of the codeword and parity bit groups with the identical transmission priority are shuffled in a predefined pattern. A packet is generated from the shuffled information bit group and the shuffled parity bit groups based on the transmission priority. The generated packet is retransmitted in response to a retransmission request. The transmission method can obtain the effect of channel interleaving by setting a transmission priority according to importance of puncturing target blocks, shuffling blocks with the same priority, and shuffling and transmitting bits configuring each block.

    摘要翻译: 一种基于用于通信系统中的混合自动重传请求(HARQ)方案的传输方法。 使用低密度奇偶校验(LDPC)码生成码字。 基于传输优先级对码字的奇偶校验位进行分类。 具有相同传输优先级的奇偶校验位被分组。 具有相同发送优先级的码字和奇偶校验比特组的信息比特组以预定义的模式进行混洗。 根据传输优先级,从混洗信息位组和混洗奇偶校验位组生成分组。 响应于重传请求重传生成的分组。 发送方法可以根据删除目标块,具有相同优先级的混洗块的重要性,以及配置每个块的混洗和发送比特来设置传输优先级,来获得信道交织的效果。

    Low density parity check code-based hybrid automatic repeat request method
    13.
    发明申请
    Low density parity check code-based hybrid automatic repeat request method 有权
    低密度奇偶校验码混合自动重传请求方法

    公开(公告)号:US20070220399A1

    公开(公告)日:2007-09-20

    申请号:US11703595

    申请日:2007-02-07

    IPC分类号: H03M13/00

    摘要: A transmission method based on a Hybrid Automatic Repeat Request (HARQ) scheme for in a communication system. A codeword is generated using a Low Density Parity Check (LDPC) code. Parity bits of the codeword are classified on a basis of a transmission priority. Parity bits with an identical transmission priority are grouped. An information bit group of the codeword and parity bit groups with the identical transmission priority are shuffled in a predefined pattern. A packet is generated from the shuffled information bit group and the shuffled parity bit groups based on the transmission priority. The generated packet is retransmitted in response to a retransmission request. The transmission method can obtain the effect of channel interleaving by setting a transmission priority according to importance of puncturing target blocks, shuffling blocks with the same priority, and shuffling and transmitting bits configuring each block.

    摘要翻译: 一种基于用于通信系统中的混合自动重传请求(HARQ)方案的传输方法。 使用低密度奇偶校验(LDPC)码生成码字。 基于传输优先级对码字的奇偶校验位进行分类。 具有相同传输优先级的奇偶校验位被分组。 具有相同发送优先级的码字和奇偶校验比特组的信息比特组以预定义的模式进行混洗。 根据传输优先级,从混洗信息位组和混洗奇偶校验位组生成分组。 响应于重传请求重传生成的分组。 发送方法可以根据删除目标块,具有相同优先级的混洗块的重要性,以及配置每个块的混洗和发送比特来设置传输优先级,来获得信道交织的效果。

    Apparatus and method for two-dimensional equalization in a communication system using orthogonal frequency division multiple access
    14.
    发明申请
    Apparatus and method for two-dimensional equalization in a communication system using orthogonal frequency division multiple access 审中-公开
    在使用正交频分多址的通信系统中二维均衡的装置和方法

    公开(公告)号:US20070092014A1

    公开(公告)日:2007-04-26

    申请号:US11543492

    申请日:2006-10-05

    IPC分类号: H04K1/10

    摘要: Provided is a two-dimensional equalization method in a receiver of a communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. The receiver sets as a first value a value of a 1-tap frequency domain equalizer (FEQ) corresponding to a sub-channel allocated to the receiver , and sets as a second value a value of a 1-tap FEQ corresponding to sub-channels other than the allocated sub-channel. Upon receipt of a signal, the receiver performs Fast Fourier Transform (FFT) on the received signal, and equalizes the FFT-processed signal according to the values of the 1-tap FEQs.

    摘要翻译: 提供了一种使用正交频分多址(OFDMA)方案的通信系统的接收机中的二维均衡方法。 接收机将与分配给接收机的子信道相对应的1抽头频域均衡器(FEQ)的值设为第1值,并将与子信道对应的1抽头FEQ的值设定为第2值 除了分配的子通道。 在接收到信号时,接收机对接收到的信号执行快速傅立叶变换(FFT),并根据1抽头FEQ的值对经FFT处理的信号进行均衡。

    Method and system for transmitting/receiving data in a communication system
    15.
    发明授权
    Method and system for transmitting/receiving data in a communication system 有权
    用于在通信系统中发送/接收数据的方法和系统

    公开(公告)号:US08243840B2

    公开(公告)日:2012-08-14

    申请号:US11703598

    申请日:2007-02-07

    IPC分类号: H04L1/02

    摘要: Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.

    摘要翻译: 提供一种用于在通信系统中发送/接收数据的系统和方法。 该方法包括:计算用于发送数据的发送单元的处理矩阵,接收数据的接收单元的处理矩阵,由多个发送天线和多个接收天线形成的信道矩阵,以及发送的参数 当经由多个发送天线发送到多个接收天线的数据时,生成数据; 根据计算的矩阵和参数确定最小均方误差(MMSE)的最小值; 以及基于所确定的最小MMSE值使用MMSE复用方案来发送/接收数据。

    Method and system for transmitting/receiving data in a communication system
    16.
    发明申请
    Method and system for transmitting/receiving data in a communication system 有权
    用于在通信系统中发送/接收数据的方法和系统

    公开(公告)号:US20070201576A1

    公开(公告)日:2007-08-30

    申请号:US11703598

    申请日:2007-02-07

    IPC分类号: H04L1/02

    摘要: Provided are a system and a method for transmitting/receiving data in a communication system. The method includes calculating a processing matrix of a transmission unit for transmitting data, a processing matrix of a reception unit for receiving the data, a channel matrix formed by a plurality of transmission antennas and a plurality of reception antennas, and a parameter of the transmission data, when the data to be transmitted to the plurality of reception antennas via the plurality of transmission antennas is generated; determining a minimum value of a Minimum Mean Square Error (MMSE) according to the calculated matrixes and parameter; and transmitting/receiving the data using an MMSE multiplexing scheme based on the determined minimum MMSE value.

    摘要翻译: 提供一种用于在通信系统中发送/接收数据的系统和方法。 该方法包括:计算用于发送数据的发送单元的处理矩阵,接收数据的接收单元的处理矩阵,由多个发送天线和多个接收天线形成的信道矩阵,以及发送的参数 当经由多个发送天线发送到多个接收天线的数据时,生成数据; 根据计算的矩阵和参数确定最小均方误差(MMSE)的最小值; 以及基于所确定的最小MMSE值使用MMSE复用方案来发送/接收数据。

    Method of recognizing frequency bandwidth of base station in a mobile communication system with frequency bandwidth scalability
    19.
    发明申请
    Method of recognizing frequency bandwidth of base station in a mobile communication system with frequency bandwidth scalability 审中-公开
    在具有频带宽度的移动通信系统中识别基站频率带宽的方法

    公开(公告)号:US20070060091A1

    公开(公告)日:2007-03-15

    申请号:US11510042

    申请日:2006-08-25

    IPC分类号: H04B1/06 H04Q7/20

    摘要: A method is provided for recognizing the frequency bandwidth of a base station in a mobile communication system with frequency bandwidth scalability where the transmission frequency bands of base stations and mobile stations having different frequency bandwidths are overlaid with one another. The base stations transmit to a mobile station first information, including information about their frequency bandwidths at the same frequency position over a minimum frequency bandwidth with the same center frequency. The mobile station recognizes the presence of the base stations by comparing the first information from the base stations and detects the frequency bandwidth information in the first information.

    摘要翻译: 提供了一种用于在具有频率带宽可伸缩性的移动通信系统中识别基站的频率带宽的方法,其中具有不同频带宽度的基站和移动台的传输频带彼此重叠。 基站在具有相同中心频率的最小频率带宽上向移动台发送包括在相同频率位置上的频率带宽的信息的第一信息。 移动台通过比较来自基站的第一信息来识别基站的存在,并检测第一信息中的频带宽度信息。

    Method for transmitting and receiving data in a mobile communication system
    20.
    发明授权
    Method for transmitting and receiving data in a mobile communication system 有权
    用于在移动通信系统中发送和接收数据的方法

    公开(公告)号:US08369306B2

    公开(公告)日:2013-02-05

    申请号:US11940519

    申请日:2007-11-15

    IPC分类号: H04L12/56 H04J1/16

    摘要: A method for transmitting and receiving data in a communication system. The method generates a frame for mapping each of multiple communication service modes of a base station providing the multiple communication service modes to a user terminal, in units of subframes each having a time interval and a frequency band. The method includes estimating a communication service mode supporting an optimal service among the multiple communication service modes provided by the base station supporting the multiple communication service modes, and sending to the base station a random access message for access to the base station over a shared channel.

    摘要翻译: 一种用于在通信系统中发送和接收数据的方法。 该方法以每个具有时间间隔和频带的子帧为单位,生成用于将提供多个通信服务模式的基站的多个通信服务模式中的每一个映射到用户终端的帧。 该方法包括:估计在支持多种通信业务模式的基站提供的多种通信业务模式中支持最佳业务的通信业务模式,并向基站发送用于通过共享信道接入基站的随机接入消息 。