公开(公告)号：US08737224B2

公开(公告)日：2014-05-27

申请号：US13382073

申请日：2010-07-02

申请人： Takahiro Hayashi ,  Masafumi Masuda ,  Hidehiro Ando ,  Takaaki Sato ,  Yoshiyuki Yasuda

发明人： Takahiro Hayashi ,  Masafumi Masuda ,  Hidehiro Ando ,  Takaaki Sato ,  Yoshiyuki Yasuda

IPC分类号： H04J1/16

CPC分类号： H04L69/324 ,  H04L69/18 ,  H04W28/06 ,  H04W76/20

摘要： Disclosed is a communication method for switching between a first connection state, in which a data unit is transmitted in a first size, and a second connection state, in which a data unit is transmitted in a second size which is larger than the first size. The communication method comprises a step of maintaining the size of a data unit at the first size in a case where there is a transition from the first connection state to the second connection state after there had been a transition from the second connection state to the first connection state.

摘要翻译： 公开了一种通信方法，用于在以第一大小发送数据单元的第一连接状态和第二连接状态之间进行切换，其中数据单元以大于第一尺寸的第二尺寸传输。 通信方法包括以下步骤：在从第二连接状态到第一连接状态的转变之间存在从第一连接状态到第二连接状态的转变的情况下，将数据单元的尺寸维持在第一尺寸的步骤 连接状态。

公开(公告)号：US08041381B2

公开(公告)日：2011-10-18

申请号：US12160524

申请日：2007-01-10

申请人： Masafumi Usuda ,  Anil Umesh ,  Hidehiro Ando ,  Takuya Sato ,  Shinichi Sasaki ,  Kouji Makino

发明人： Masafumi Usuda ,  Anil Umesh ,  Hidehiro Ando ,  Takuya Sato ,  Shinichi Sasaki ,  Kouji Makino

IPC分类号： H04B7/00

CPC分类号： H04L1/0057 ,  H04L1/0026 ,  H04W52/04 ,  H04W52/08 ,  H04W52/10 ,  H04W52/20 ,  H04W52/241 ,  H04W52/362 ,  H04W52/386

摘要： A radio network controller includes a block error detection unit configured to receive a data block from the base station and to detect a block error, and a target SIR calculation unit configured to calculate a target SIR based on the detected block error rate. The target calculation unit sets a first time section, which indicates a time section from a detection of the block error to the notification of the target SIR is to the base station when the block error is detected, shorter than a second time section, which indicates a time section from the detection of the block error to the notification of the target SIR to the base station when the block error is not detected.

摘要翻译： 无线网络控制器包括块错误检测单元，被配置为从基站接收数据块并检测块错误;目标SIR计算单元，被配置为基于检测到的块错误率来计算目标SIR。 目标计算单元在检测到块错误时比第二时间段设置第一时间段，其表示从块错误的检测到目标SIR的通知的时间段到基站，第二时间段指示 在没有检测到块错误的情况下从检测到块错误到目标SIR的通知的时间部分。

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：US20100151812A1

公开(公告)日：2010-06-17

申请号：US12711125

申请日：2010-02-23

申请人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

发明人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

IPC分类号： H04B1/16

CPC分类号： H04B7/0634 ,  H04B7/0654

摘要： When a closed loop transmission diversity control is performed by controlling the phase of the transmission signals from the plurality of antennas according to feedback information noticed by the mobile station to transmit the signals, an antenna verification on-off control unit 370 controls the on-off of an antenna verification process of estimating the phase of the transmission signals from the plurality of antennas according to the information about the channel of the signals transmitted in the uplink from the mobile station to a radio base station. Thus, depending on the channel type (for example, a packet channel, a voice channel, etc.), the on-off control is performed on the antenna verification process, thereby performing easier and more appropriate control and improving the quality of a channel.

摘要翻译： 当通过根据移动台注意到的反馈信息来控制来自多个天线的发送信号的相位来执行闭环发送分集控制以发送信号时，天线验证开 - 关控制单元370控制开 - 根据关于在从移动台到无线基站的上行链路中发送的信号的信道的信息，估计来自多个天线的发送信号的相位的天线验证处理。 因此，根据信道类型（例如，分组信道，语音信道等），对天线验证处理进行开关控制，从而执行更容易且更适当的控制并提高信道的质量 。

公开(公告)号：US20100048214A1

公开(公告)日：2010-02-25

申请号：US11721774

申请日：2005-12-13

申请人： Masafumi Usuda ,  Takehiro Nakamura ,  Hidehiro Ando ,  Takuya Sato ,  Hiroyuki Ishii

发明人： Masafumi Usuda ,  Takehiro Nakamura ,  Hidehiro Ando ,  Takuya Sato ,  Hiroyuki Ishii

IPC分类号： H04W36/00

CPC分类号： H04W36/18 ,  H04B7/022 ,  H04B7/0689 ,  H04W88/12 ,  H04W92/12

摘要： A radio network controller includes: a determination unit configured to determine a transmit diversity method to be used to transmit a signal from a base station to a mobile station, in accordance with a soft handover status of the mobile station; and an instruction/notification unit configured to instruct the transmit diversity method to the base station, in accordance with the determination result by the determination unit.

摘要翻译： 无线网络控制器包括：确定单元，被配置为根据移动台的软切换状态确定要用于从基站向移动台发送信号的发射分集方法; 以及指示/通知单元，被配置为根据确定单元的确定结果向基站指示发送分集方法。

公开(公告)号：US07613432B2

公开(公告)日：2009-11-03

申请号：US11493563

申请日：2006-07-27

申请人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

发明人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

IPC分类号： H04B7/02 ,  H04L1/02

CPC分类号： H04B7/0689 ,  H04B7/0634 ,  H04B7/0654 ,  H04L1/0001 ,  H04L1/0017 ,  H04L1/0625

摘要： A mobile communication system controls switching a transmission diversity system for each channel, and improves the quality of the channel. When the channel type in an uplink is a channel for transmitting voice, open loop transmission diversity is used (steps S1→S3). When the channel type in an uplink is a channel for transmitting a packet, closed loop transmission diversity is used (steps S1→S2). Since the open loop transmission diversity or the closed loop transmission diversity which ever is more appropriate can be used, a transmission diversity system can be appropriately switched for each channel, thereby improving the quality of the channel.

摘要翻译： 移动通信系统控制每个信道的发射分集系统的切换，提高信道的质量。 当上行链路中的信道类型是用于发送语音的信道时，使用开环发送分集（步骤S1-> S3）。 当上行链路中的信道类型是用于发送分组的信道时，使用闭环发送分集（步骤S1→S2）。 由于可以使用越来越适合的开环发送分集或闭环发送分集，因此可以针对每个信道适当地切换发送分集系统，从而提高信道的质量。

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：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：US20070037524A1

公开(公告)日：2007-02-15

申请号：US11493563

申请日：2006-07-27

申请人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

发明人： Hiroyuki Ishii ,  Takuya Sato ,  Hidehiro Ando

IPC分类号： H04B7/00 ,  H04M1/00

CPC分类号： H04B7/0689 ,  H04B7/0634 ,  H04B7/0654 ,  H04L1/0001 ,  H04L1/0017 ,  H04L1/0625

摘要： A mobile communication system controls switching a transmission diversity system for each channel, and improves the quality of the channel. When the channel type in an uplink is a channel for transmitting voice, open loop transmission diversity is used (steps S1→S3). When the channel type in an uplink is a channel for transmitting a packet, closed loop transmission diversity is used (steps S1→S2). Since the open loop transmission diversity or the closed loop transmission diversity whichever is more appropriate can be used, a transmission diversity system can be appropriately switched for each channel, thereby improving the quality of the channel.

摘要翻译： 移动通信系统控制每个信道的发射分集系统的切换，提高信道的质量。 当上行链路中的信道类型是用于发送语音的信道时，使用开环发送分集（步骤S1〜S3）。 当上行链路中的信道类型是用于发送分组的信道时，使用闭环发送分集（步骤S1〜S2）。 由于可以使用开环发送分集或闭环发送分集，因此可以适当地切换每个信道的发送分集系统，从而提高信道的质量。