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    • 86. 发明申请
    • RADIO COMMUNICATION APPARATUS AND TEMPORARY BIT INSERTION METHOD
    • 无线电通信装置和临时位插入方法
    • US20100050044A1
    • 2010-02-25
    • US12523945
    • 2008-01-22
    • Kenichi KuriAkihiko NishioMasaru Fukuoka
    • Kenichi KuriAkihiko NishioMasaru Fukuoka
    • H03M13/05G06F11/10
    • H03M13/11H03M13/1102H03M13/353H04L1/005H04L1/0057
    • Provided is a radio communication apparatus capable of always obtaining the optimum error rate characteristic when an LDPC code is used for an error-correcting code. In the apparatus, a temporary bit insertion section (101) inserts a temporary bit into a position equivalent to that of the systematic bit corresponding to a variable node having the largest number of connections with a check node in the Tanner graph corresponding to a check matrix in a transmission bit string and outputs the generated bit string to an LDPC coding section (102), The LDPC coding section (102) performs LDPC coding on the bit string inputted from the temporary bit insertion section (101) by using the check matrix and obtains an LDPC code word composed of the systematic bit and a parity bit. The LDPC code word is outputted to a temporary bit removal section (103).
    • 提供一种当LDPC码用于纠错码时能够总是获得最佳误码率特性的无线电通信装置。 在该设备中,临时位插入部分(101)将临时位插入到与对应于与检查矩阵相对应的Tanner图中的校验节点具有最大连接数的可变节点的系统位的位置相当的位置 在传输比特串中,将生成的比特串输出到LDPC编码部(102),LDPC编码部(102)通过使用校验矩阵对从临时比特插入部(101)输入的比特串进行LDPC编码, 获得由系统位和奇偶校验位组成的LDPC码字。 LDPC码字被输出到临时位移除部分(103)。
    • 87. 发明申请
    • RADIO COMMUNICATION DEVICE AND PILOT ARRANGEMENT METHOD
    • 无线电通信设备和导频安排方法
    • US20100027501A1
    • 2010-02-04
    • US12442492
    • 2007-09-25
    • Masaru FukuokaAkihiko Nishio
    • Masaru FukuokaAkihiko Nishio
    • H04W40/00H04L27/28
    • H04L5/0051H04J13/004H04L5/0023H04L5/005
    • Provided is a radio communication device capable of reducing the number of pilots while maintaining a channel estimation accuracy. The radio communication device includes: a unicast pilot generation unit (105) which generates a unicast pilot sequence and outputs it to an arrangement unit (106); and an arrangement unit (106) arranges unicast data, multicast data, a unicast pilot sequence, and a multicast pilot sequence at a position on the two-dimensional plane formed by a frequency axis and a time axis for output to an IFFT (Inverse Fast Fourier Transform) unit (107). Here, the arrangement unit (106) does not arrange pilots of the multicast pilot sequence at a time when the single frequency is different from the position where identical pilots are arranged between sectors among the respective pilots of the unicast pilot sequence in one sub frame.
    • 提供了能够在维持信道估计精度的同时减少导频数量的无线通信装置。 无线通信装置包括:单播导频生成单元,生成单播导频序列,并将其输出到配置单元; 和排列单元(106)将单播数据,组播数据,单播导频序列和组播导频序列排列在由频率轴和时间轴形成的二维平面上的位置,以输出到IFFT(反向快速 傅里叶变换)单元(107)。 这里,在单个频率与在一个子帧中的单播导频序列的各个导频之间的扇区之间的相同导频的位置不同的时刻,布置单元(106)不配置多播导频序列的导频。