Apparatus and method for forming subchannel in a communication system
    21.
    发明申请
    Apparatus and method for forming subchannel in a communication system 审中-公开
    在通信系统中形成子信道的装置和方法

    公开(公告)号:US20080317151A1

    公开(公告)日:2008-12-25

    申请号:US12214281

    申请日:2008-06-18

    IPC分类号: H04L27/28

    摘要: A method for forming a subchannel in a communication system where a first communication system and a second communication system coexist. The method includes determining a first tile set by arranging first tiles remaining after forming at least one first subchannel for the first communication system among frequency resources, including a plurality of tiles, available for the first communication system; determining a second tile set by inserting second tiles which are independent of the frequency resources and are available for the second communication system into the determined first tile set at predetermined positions; forming at least one second subchannel for the second communication system by selecting a predetermined number of tiles from the second tile set; and performing communication using at least one of the first subchannel and the second subchannel.

    摘要翻译: 一种在第一通信系统和第二通信系统共存的通信系统中形成子信道的方法。 该方法包括通过在包括可用于第一通信系统的多个瓦片的频率资源中形成用于第一通信系统的至少一个第一子信道之后布置剩余的第一瓦片来确定第一瓦片组; 通过插入独立于所述频率资源的第二瓦片来确定第二瓦片组,并且可将所述第二通信系统用于在所述确定的在预定位置处的第一瓦片组; 通过从所述第二瓦片组中选择预定数量的瓦片来形成用于所述第二通信系统的至少一个第二子信道; 以及使用所述第一子信道和所述第二子信道中的至少一个来执行通信。

    Method and apparatus for signal transmission/reception in a communication system using an HARQ scheme
    22.
    发明授权
    Method and apparatus for signal transmission/reception in a communication system using an HARQ scheme 有权
    在使用HARQ方案的通信系统中用于信号发送/接收的方法和装置

    公开(公告)号:US08266512B2

    公开(公告)日:2012-09-11

    申请号:US12367040

    申请日:2009-02-06

    IPC分类号: G06F11/00 H03M13/00

    摘要: An apparatus and method for transmitting a signal in a communication system using a Hybrid Automatic Repeat reQuest (HARQ) scheme are provided. The method includes generating a codeword vector by encoding an information vector by using a first parity check matrix of Low Density Parity Check (LDPC) codes, generating a transmission vector by processing the codeword vector, and transmitting the transmission vector. When the first parity check matrix includes a plurality of square matrix columns, each square matrix includes a size of L×L, the first parity check matrix is one of p parity check matrixes stored in the signal transmission apparatus, the p parity check matrixes support different numbers of information vector square matrix columns, and each of the numbers of information vector square matrix columns indicates the number of square matrix columns corresponding to the information vector from among the plurality of square matrix columns. The first parity check matrix is a parity check matrix supporting the number of information vector square matrix columns determined by using the length of the information vector and the value L from the p parity check matrixes, and the value L is determined by using p and the length of the information vector.

    摘要翻译: 提供了一种使用混合自动重复请求(HARQ)方案在通信系统中发送信号的装置和方法。 该方法包括通过使用低密度奇偶校验(LDPC)码的第一奇偶校验矩阵对信息向量进行编码来生成码字矢量,通过处理码字矢量生成发送矢量,并发送发送矢量。 当第一奇偶校验矩阵包括多个矩形列时,每个方阵包括L×L的大小,第一奇偶校验矩阵是存储在信号传输装置中的p个奇偶校验矩阵之一,p个奇偶校验矩阵支持 不同数量的信息矢量矩阵列,信息矢量方阵列数中的每一个表示与多个矩阵列中的信息向量对应的矩阵列的数量。 第一奇偶校验矩阵是支持通过使用信息向量的长度和来自p个奇偶校验矩阵的值L确定的信息矢量矩阵列的数量的奇偶校验矩阵,并且通过使用p和 信息向量的长度。

    Resource allocation apparatus and method for reducing overhead in mobile communication system
    25.
    发明授权
    Resource allocation apparatus and method for reducing overhead in mobile communication system 有权
    用于减少移动通信系统中的开销的资源分配装置和方法

    公开(公告)号:US08279815B2

    公开(公告)日:2012-10-02

    申请号:US12386471

    申请日:2009-04-17

    IPC分类号: H04W72/00

    CPC分类号: H04W72/04 H04W72/0406

    摘要: A resource allocation for reducing overhead in a mobile communication system is provided. An operating method of a base station for changing a fixed resource allocation to reduce overhead in a mobile communication system includes calculating a total amount of resources allocated to a corresponding subframe in a period of a corresponding fixed allocation resource; when the total amount of the resources allocated to the corresponding subframe is greater than a threshold, temporarily canceling one or more corresponding fixed allocation resources to make the total amount of the resources allocated to the corresponding subframe less than or equal to the threshold; and reallocating the one or more canceled fixed allocation resources according to a corresponding rule.

    摘要翻译: 提供了用于减少移动通信系统中的开销的资源分配。 一种用于改变固定资源分配以减少移动通信系统的开销的基站的操作方法包括:在相应的固定分配资源的周期内计算分配给相应子帧的资源的总量; 当分配给对应子帧的资源的总量大于阈值时,暂时取消一个或多个对应的固定分配资源,使得分配给相应子帧的资源的总量小于或等于阈值; 并根据相应的规则重新分配一个或多个取消的固定分配资源。

    Apparatus and method for estimating uplink frequency offset in wireless communication system
    27.
    发明申请
    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:US20080232343A1

    公开(公告)日:2008-09-25

    申请号:US11787410

    申请日:2007-04-16

    IPC分类号: H04B7/212 H04L27/06

    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 generating low density parity check code
    29.
    发明授权
    Apparatus and method for generating low density parity check code 有权
    用于生成低密度奇偶校验码的装置和方法

    公开(公告)号:US08296636B2

    公开(公告)日:2012-10-23

    申请号:US12396857

    申请日:2009-03-03

    IPC分类号: H03M13/03

    CPC分类号: H03M13/1142

    摘要: A Low Density Parity Check (LDPC) encoding apparatus and method are provided. The LDPC encoding apparatus includes a controller for determining a number of zeros b to be inserted in an input information vector when a length of the input information vector is less than a length of a use information vector of a parity-check matrix, for selecting b stopping sets Sd using the parity-check matrix, for selecting one variable node from each of the b stopping sets Sd using a selection scheme, and for determining positions corresponding to the selected variable node from each of the b stopping sets Sd as positions where zeros are to be inserted.

    摘要翻译: 提供了一种低密度奇偶校验(LDPC)编码装置和方法。 LDPC编码装置包括控制器,用于当输入信息向量的长度小于奇偶校验矩阵的使用信息向量的长度时,确定要在输入信息向量中插入的零个数b,用于选择b 使用奇偶校验矩阵的停止组Sd,用于使用选择方案从b个停止集合Sd中的每一个中选择一个变量节点,以及用于从b个停止集合Sd中的每一个确定与所选择的变量节点相对应的位置作为零的位置 将被插入。

    Resource allocation apparatus and method for reducing overhead in mobile communication system
    30.
    发明申请
    Resource allocation apparatus and method for reducing overhead in mobile communication system 有权
    用于减少移动通信系统中的开销的资源分配装置和方法

    公开(公告)号:US20090323626A1

    公开(公告)日:2009-12-31

    申请号:US12583827

    申请日:2009-08-26

    IPC分类号: H04W72/04

    CPC分类号: H04W72/0406

    摘要: An operating method of a base station for changing a fixed resource allocation to reduce overhead in a mobile communication system includes calculating a total amount of resources allocated to a corresponding subframe in a period of a corresponding fixed allocation resource; when the total amount of the resources allocated to the corresponding subframe is greater than a threshold, temporarily canceling one or more corresponding fixed allocation resources to make the total amount of the resources allocated to the corresponding subframe less than or equal to the threshold; and reallocating the one or more canceled fixed allocation resources according to a corresponding rule.

    摘要翻译: 一种用于改变固定资源分配以减少移动通信系统的开销的基站的操作方法包括:在相应的固定分配资源的周期内计算分配给对应子帧的资源的总量; 当分配给对应子帧的资源的总量大于阈值时,暂时取消一个或多个对应的固定分配资源,使得分配给相应子帧的资源的总量小于或等于阈值; 并根据相应的规则重新分配一个或多个取消的固定分配资源。