Sensor network communication system interworking with broadband wireless access communication system and communication method therefor
    41.
    发明申请
    Sensor network communication system interworking with broadband wireless access communication system and communication method therefor 审中-公开
    传感器网络通信系统与宽带无线接入通信系统的互通及其通信方法

    公开(公告)号:US20070030168A1

    公开(公告)日:2007-02-08

    申请号:US11498661

    申请日:2006-08-03

    IPC分类号: H04Q9/00

    CPC分类号: H04Q9/00

    摘要: A sensor network communication system interworking with a BWA communication system and a communication method therefor are provided. In a method for measuring a predetermined target in the sensor network communication system interworking with the BWA communication system, a mobile station or a server sends a measurement request for the predetermined target to a local controller over the BWA communication system. The local controller sends the measurement request to a predetermined sensor and actuator over a wireless communication protocol. The sensor and actuator measures the predetermined target and sends the measurement value to the local controller. The local controller sends a measurement result message based on the measurement value to the mobile station or the server.

    摘要翻译: 提供了与BWA通信系统相互配合的传感器网络通信系统及其通信方法。 在与BWA通信系统相互配合的传感器网络通信系统中测量预定目标的方法中,移动站或服务器通过BWA通信系统向本地控制器发送预定目标的测量请求。 本地控制器通过无线通信协议将测量请求发送到预定的传感器和致动器。 传感器和执行器测量预定目标,并将测量值发送到本地控制器。 本地控制器根据测量值向移动台或服务器发送测量结果消息。

    Apparatus and method for coding and decoding irregular repeat accumulate codes
    45.
    发明授权
    Apparatus and method for coding and decoding irregular repeat accumulate codes 有权
    用于编码和解码不规则重复累加码的装置和方法

    公开(公告)号:US07302629B2

    公开(公告)日:2007-11-27

    申请号:US11009231

    申请日:2004-12-10

    IPC分类号: H03M13/29 H03M13/45

    摘要: An apparatus and method for coding an irregular Repeat Accumulate (RA) code. A repeater repeats a received information word such that the information word corresponds to weights of a first information part and a second information part of a parity check matrix in which permutation matrixes are arranged in the first information part and the second information part corresponding to the information word such that a minimum length of a cycle on a factor graph of the irregular RA code becomes a predetermined length and weights are irregular, and a dual diagonal matrix is arranged in a parity part corresponding to a parity. An interleaver interleaves a signal output from the repeater using an interleaving scheme predefined for the parity check matrix. An accumulator generates the irregular RA code by accumulating a signal output from the interleaver according to a weight of the parity part.

    摘要翻译: 用于对不规则重复累积(RA)代码进行编码的装置和方法。 中继器重复接收到的信息字,使得信息字对应于奇偶校验矩阵的第一信息部分和第二信息部分的权重,其中排列矩阵排列在第一信息部分中,第二信息部分对应于信息 字,使得不规则RA码的因子图上的周期的最小长度变为预定长度,并且权重是不规则的,并且在对应于奇偶校验的奇偶校验部分中布置双对角矩阵。 交织器使用为奇偶校验矩阵预定义的交织方案来交织从中继器输出的信号。 累加器通过根据奇偶校验部分的权重累加从交织器输出的信号来产生不规则RAD码。

    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system
    46.
    发明申请
    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权
    在移动通信系统中对低密度奇偶校验码进行编码/解码的装置和方法

    公开(公告)号:US20050050435A1

    公开(公告)日:2005-03-03

    申请号:US10926932

    申请日:2004-08-26

    摘要: A method for generating a parity check matrix of a block LDPC code is disclosed. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

    摘要翻译: 公开了一种用于生成块LDPC码的奇偶校验矩阵的方法。 奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。 该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块,对应于第一奇偶校验部分的块,以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵,从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中,使得最小周期长度最大化,权重值在块LDPC码的因子图上是不规则的。

    Channel encoding/decoding apparatus and method using a parallel concatenated low density parity check code
    47.
    发明申请
    Channel encoding/decoding apparatus and method using a parallel concatenated low density parity check code 有权
    信道编码/解码装置和使用并行级联低密度奇偶校验码的方法

    公开(公告)号:US20050149842A1

    公开(公告)日:2005-07-07

    申请号:US10988900

    申请日:2004-11-15

    摘要: A channel encoding apparatus using a parallel concatenated low density parity check (LDPC) code. A first LDPC encoder generates a first component LDPC code according to information bits received. An interleaver interleaves the information bits according to a predetermined interleaving rule. A second LDPC encoder generates a second component LDPC code according to the interleaved information bits. A controller performs a control operation such that the information bits, the first component LDPC code which is first parity bits corresponding to the information bits, and the second component LDPC code which is second parity bits corresponding to the information bits are combined according to a predetermined code rate.

    摘要翻译: 一种使用并行级联低密度奇偶校验(LDPC)码的信道编码装置。 第一LDPC编码器根据接收的信息比特生成第一分量LDPC码。 交织器根据预定的交织规则交织信息比特。 第二LDPC编码器根据交织的信息比特生成第二分量LDPC码。 控制器执行控制操作,使得信息比特,对应于信息比特的第一奇偶校验位的第一分量LDPC码和与信息比特相对应的第二奇偶校验位的第二分量LDPC码根据预定的 码率。

    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system
    50.
    发明授权
    Apparatus and method for coding/decoding block low density parity check code in a mobile communication system 有权
    在移动通信系统中对低密度奇偶校验码进行编码/解码的装置和方法

    公开(公告)号:US07962828B2

    公开(公告)日:2011-06-14

    申请号:US11831688

    申请日:2007-07-31

    IPC分类号: H03M13/00

    摘要: A method for generating a parity check matrix of a block LDPC code. The parity check matrix includes an information part corresponding to an information word and a first parity part and a second parity part each corresponding to a parity. The method includes determining a size of the parity check matrix based on a coding rate applied when coding the information word with the block LDPC code, and a codeword length; dividing a parity check matrix with the determined size into a predetermined number of blocks; classifying the blocks into blocks corresponding to the information part, blocks corresponding to the first parity part, and blocks corresponding to the second parity part; arranging permutation matrixes in predetermined blocks from among the blocks classified as the first parity part, and arranging identity matrixes in a full lower triangular form in predetermined blocks from among the blocks classified as the second parity part; and arranging the permutation matrixes in the blocks classified as the information part such that a minimum cycle length is maximized and weight values are irregular on a factor graph of the block LDPC code.

    摘要翻译: 一种用于产生块LDPC码的奇偶校验矩阵的方法。 奇偶校验矩阵包括对应于信息字的信息部分和对应于奇偶校验的第一奇偶校验部分和第二奇偶校验部分。 该方法包括基于在使用块LDPC码对信息字进行编码时应用的编码率和码字长度来确定奇偶校验矩阵的大小; 将具有所确定的大小的奇偶校验矩阵除以预定数量的块; 将块分类为对应于信息部分的块,对应于第一奇偶校验部分的块,以及对应于第二奇偶校验部分的块; 从分类为第一奇偶校验部分的块中将预定块中的置换矩阵排列在预定块中的整个下三角形形式中的单位矩阵,从被分类为第二奇偶校验部分的块中排列; 以及将排列矩阵排列在分组为信息部分的块中,使得最小周期长度最大化,权重值在块LDPC码的因子图上是不规则的。