公开(公告)号：US08295332B2

公开(公告)日：2012-10-23

申请号：US13033035

申请日：2011-02-23

申请人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

发明人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

IPC分类号： H04B1/69 ,  H04L25/20

CPC分类号： H04L25/0234 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0228

摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.

摘要翻译： 在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。 此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号 并对该导频符号进行加权和平均。 此外，基于导频符号的内积值来检测衰落频率。 加权因子根据检测到的衰落频率而改变。 此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。 所计算的信道估计值用于解调接收的数据。 通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。 也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。 在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

公开(公告)号：US20110142102A1

公开(公告)日：2011-06-16

申请号：US13033035

申请日：2011-02-23

申请人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

发明人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

IPC分类号： H04B1/10 ,  H04L27/06 ,  H04B1/707

CPC分类号： H04L25/0234 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0228

摘要： In this invention, a channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data. The output data with the highest quality is selected by judging reliability of these plurality of demodulated data. It is also possible to select some weighting sequences based on the result of the reliability judgment of the demodulated data for predetermined period of time. In this case, after the selection, demodulation is performed by using these selected weighting sequences only.

摘要翻译： 在本发明中，通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。 此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号 并对该导频符号进行加权和平均。 此外，基于导频符号的内积值来检测衰落频率。 加权因子根据检测到的衰落频率而改变。 此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。 所计算的信道估计值用于解调接收的数据。 通过判断这些多个解调数据的可靠性来选择具有最高质量的输出数据。 也可以基于解调数据的可靠性判断的结果来选择一些加权序列预定的时间段。 在这种情况下，在选择之后，仅通过使用这些选择的加权序列来执行解调。

公开(公告)号：US07929592B1

公开(公告)日：2011-04-19

申请号：US09701705

申请日：2000-03-31

申请人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

发明人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

IPC分类号： H04B1/69 ,  H04B1/707

CPC分类号： H04L25/0234 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0228

摘要： A channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data.

摘要翻译： 通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。 此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号 并对该导频符号进行加权和平均。 此外，基于导频符号的内积值来检测衰落频率。 加权因子根据检测到的衰落频率而改变。 此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。 所计算的信道估计值用于解调接收的数据。

公开(公告)号：US07142529B2

公开(公告)日：2006-11-28

申请号：US11226195

申请日：2005-09-15

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

公开(公告)号：US20070286153A1

公开(公告)日：2007-12-13

申请号：US11691865

申请日：2007-03-27

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

摘要翻译： 提供一种有效的数据多路复用方法，其中最大限度地发挥纠错能力，从而提高数据传输质量，并提供其中执行使用插值导频信号进行数据传输的适用于交织处理的数据传输方法。 数据复用方法包括以下步骤：对每个输入通道的输入数据进行编码; 复用所编码的数据; 对被复用的所述数据执行交织处理; 并输出所述数据。 在数据发送方法中，当执行交织处理时，使用交织器，其中交织器的列数是帧的时隙数量的两倍。

公开(公告)号：US20070036182A1

公开(公告)日：2007-02-15

申请号：US11585836

申请日：2006-10-25

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/02

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

摘要翻译： 提供一种有效的数据多路复用方法，其中最大限度地施加纠错能力以改善数据传输质量，并提供其中执行使用插值导频信号的数据传输适用的交错处理的数据传输方法。 数据复用方法包括以下步骤：对每个输入通道的输入数据进行编码; 复用所编码的数据; 对被复用的所述数据执行交织处理; 并输出所述数据。 在数据发送方法中，当执行交织处理时，使用交织器，其中交织器的列数是帧的时隙数量的两倍。

公开(公告)号：US20060007949A1

公开(公告)日：2006-01-12

申请号：US11226200

申请日：2005-09-15

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04B7/216

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

公开(公告)号：US20080165757A1

公开(公告)日：2008-07-10

申请号：US12044197

申请日：2008-03-07

申请人： Yukihiko OKUMURA ,  Hidehiro Ando

发明人： Yukihiko OKUMURA ,  Hidehiro Ando

IPC分类号： H04J3/00

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

摘要翻译： 提供一种有效的数据多路复用方法，其中最大限度地发挥纠错能力，从而提高数据传输质量，并提供其中执行使用插值导频信号进行数据传输的适用于交织处理的数据传输方法。 数据复用方法包括以下步骤：对每个输入通道的输入数据进行编码; 复用所编码的数据; 对被复用的所述数据执行交织处理; 并输出所述数据。 在数据发送方法中，当执行交织处理时，使用交织器，其中交织器的列数是帧的时隙数量的两倍。

公开(公告)号：US07342915B2

公开(公告)日：2008-03-11

申请号：US11585836

申请日：2006-10-25

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

公开(公告)号：US07327718B2

公开(公告)日：2008-02-05

申请号：US11691865

申请日：2007-03-27

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

摘要翻译： 提供一种有效的数据多路复用方法，其中最大限度地发挥纠错能力，从而提高数据传输质量，并提供其中执行使用插值导频信号进行数据传输的适用于交织处理的数据传输方法。 数据复用方法包括以下步骤：对每个输入通道的输入数据进行编码; 复用所编码的数据; 对被复用的所述数据执行交织处理; 并输出所述数据。 在数据发送方法中，当执行交织处理时，使用交织器，其中交织器的列数是帧的时隙数量的两倍。