公开(公告)号：US08654900B2

公开(公告)日：2014-02-18

申请号：US12988458

申请日：2009-04-24

申请人： Shinsuke Takaoka ,  Katsuhiko Hiramatsu ,  Akihiko Nishio ,  Ryohei Kimura ,  Yoshiko Saito ,  Megumi Ichikawa

发明人： Shinsuke Takaoka ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Akihiko Nishio ,  Ryohei Kimura ,  Yoshiko Saito

IPC分类号： H04L27/06

CPC分类号： H04L25/0224 ,  H04B7/0617 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0029 ,  H04L25/0202

摘要： Provided is a wireless communication device which can improve the notification accuracy of the channel state information (CSI) without straining the feedback circuit. In this device, a channel estimator (105) uses a pilot signal input from a wireless receiver (102) to estimate the channel and obtain a plurality of path gains in each of a plurality of delay periods. Then, the channel estimator (105) outputs the plurality of path gains to a quantizer (107). The quantizer (107) quantizes the plurality of path gains in the number of notification bits corresponding to each of the plurality of delay periods based on the correspondence of the delay period and the number of notification bits input from a setting unit (106).

摘要翻译： 提供一种能够在不使反馈电路变紧的情况下提高信道状态信息（CSI）的通知精度的无线通信装置。 在该装置中，信道估计器（105）使用从无线接收器（102）输入的导频信号来估计信道并在多个延迟周期中的每一个中获得多个路径增益。 然后，信道估计器（105）将多路径增益输出到量化器（107）。 量化器（107）基于延迟时间的对应关系和从设置单元（106）输入的通知位数来量化与多个延迟周期中的每一个对应的通知位数的多个路径增益。

公开(公告)号：US20100266060A1

公开(公告)日：2010-10-21

申请号：US12668653

申请日：2008-07-11

申请人： Ryohei Kimura ,  Shinsuke Takaoka ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

发明人： Ryohei Kimura ,  Shinsuke Takaoka ,  Masayuki Hoshino ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/02

CPC分类号： H04B7/0671 ,  H04B7/12

摘要： A radio communication device capable of obtaining the frequency diversity effect when a CDD is used for the open-loop transmission. A CDD control information determination section (101) on the radio communication device determines the number of cyclic delay shift samples given to transmission data to be transmitted from each of antennas (109-1) to (109-4) such that a combination of two antennas maximizing the difference between the number of two cyclic delay shift samples given to the transmission data to be transmitted from each of two antennas is changed sequentially over time in all the combinations of any two antennas among the antennas (109-1) to (109-4). Cyclic delay sections (105-1) to (105-4) give each different cyclic delay to each data symbol assigned to a plurality of sub-carriers among multiplexed signals that are input from an arrangement section (104) according to the number of cyclic delay shift samples to be input from the CDD control information determination section (101).

摘要翻译： 一种当CDD用于开环传输时能够获得频率分集效应的无线电通信装置。 无线电通信装置中的CDD控制信息确定部分（101）确定从每个天线（109-1）到（109-4）发送的发送数据的循环延迟移位样本的数量，使得两个 在天线（109-1）至（109）中的任何两个天线的所有组合中，随着时间顺序改变给予要从两个天线中的每一个发送的发送数据的两个循环延迟移位样本的数量之间的差异的天线 -4）。 循环延迟部分（105-1）至（105-4）给予从配置部分（104）输入的复用信号中分配给多个子载波的每个数据符号的每个不同的循环延迟，根据循环 延迟移位样本从CDD控制信息确定部分（101）输入。

公开(公告)号：US08605571B2

公开(公告)日：2013-12-10

申请号：US13119813

申请日：2009-09-18

申请人： Shinsuke Takaoka ,  Masayuki Hoshino ,  Meguml Ichikawa

发明人： Shinsuke Takaoka ,  Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04J11/00

CPC分类号： H04W72/0453 ,  G06F17/141 ,  H04J1/00 ,  H04J4/005 ,  H04J11/00 ,  H04L5/0041 ,  H04L27/2602 ,  H04L27/2628 ,  H04L27/2636 ,  H04W88/08 ,  Y10S370/916

摘要： Provided is a radio communication device which can reduce ISI caused by destruction of an orthogonal DFT matrix even when an SC-FDMA signal is divided into a plurality of clusters and the clusters are respectively mapped to discontinuous frequency bands. The radio communication device includes a DFT unit (110), a division unit (111), and a mapping unit (112). The DFT unit (110) uses the DFT matrix to execute a DFT process on a symbol sequence in a time region to generate a signal (SC-FDMA signal) of the frequency region. The division unit (111) generates a plurality of clusters by dividing the SC-FDMA signal with a partially orthogonal bandwidth corresponding to the vector length of some of the column vectors constituting the DFT matrix used in the DFT unit (110) and orthogonally intersecting at least partially. The mapping unit (112) maps the clusters to discontinuous frequency bands.

摘要翻译： 提供一种无线电通信装置，即使当SC-FDMA信号被划分为多个群集并且群集分别映射到不连续的频带时，其也可以减少由正交DFT矩阵的破坏引起的ISI。 无线通信装置包括DFT单元（110），分割单元（111）和映射单元（112）。 DFT单元（110）使用DFT矩阵对时间区域中的符号序列执行DFT处理，以生成频率区域的信号（SC-FDMA信号）。 分割单元（111）通过用对应于构成在DFT单元（110）中使用的DFT矩阵的一些列向量的矢量长度的部分正交带宽划分SC-FDMA信号并且在正交带宽上正交相交 最少部分。 映射单元（112）将簇映射到不连续的频带。

公开(公告)号：US20130128859A1

公开(公告)日：2013-05-23

申请号：US13814787

申请日：2011-07-12

申请人： Shinsuke Takaoka ,  Takashi Iwai

发明人： Shinsuke Takaoka ,  Takashi Iwai

IPC分类号： H04W72/04

CPC分类号： H04W72/0473 ,  H04L1/0031 ,  H04L1/1607 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/262 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W72/042

摘要： Provided are a wireless communication terminal apparatus and a wireless communication method that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between the wireless communication terminal apparatus and a wireless communication base station apparatus. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.

摘要翻译： 提供一种无线通信终端装置和无线通信方法，其可以排除在无线通信终端装置与无线通信基站装置之间识别出不同的UL授权的参考格式的识别不匹配。 对于没有UL授权的CC中的PUSCH的PHR计算，使用用于计算具有与PUSCH相同的子帧号的另一个CC中的PHR的UL许可。 例如，对于子帧号=＃1，CC＃0的UL授权用于计算不存在UL授权的CC＃2的PHR。

公开(公告)号：US20100254485A1

公开(公告)日：2010-10-07

申请号：US12746750

申请日：2008-12-12

申请人： Isamu Yoshii ,  Atsushi Sumasu ,  Tomohiro Imai ,  Hidenori Kayama ,  Hidenori Matsuo ,  Yoshiko Saito ,  Seigo Nakao ,  Shinsuke Takaoka

发明人： Isamu Yoshii ,  Atsushi Sumasu ,  Tomohiro Imai ,  Hidenori Kayama ,  Hidenori Matsuo ,  Yoshiko Saito ,  Seigo Nakao ,  Shinsuke Takaoka

IPC分类号： H04L27/00

CPC分类号： H04B7/0671 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0684 ,  H04B7/10

摘要： It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which communicates with the MIMO transmission device. The MIMO transmission device (100) includes phase adjustment units (130-1, 130-2) which are controlled by a pilot transmission control unit (170) to multiply parallel pilot signals by a phase adjustment coefficient group so as to adjust the pilot signal transmission timing. The pilot transmission control unit (170) differentiates the order of the transmitting antennas in accordance with the pilot transmission timing between an even-number subcarrier group and an odd-number subcarrier group. At a reception side, a path not influenced by the inter-path interference is extracted for each of the combinations of the transmitting antennas and the subcarrier groups. A channel estimation value is calculated according to the extracted path so as to improve the channel estimation accuracy.

摘要翻译： 可以提供一种可以计算准确的信道估计值的新型导频传输方法，使用导频传输方法的MIMO传输装置和与MIMO传输装置进行通信的MIMO接收装置。 MIMO传输设备（100）包括由导频传输控制单元（170）控制以将并行导频信号乘以相位调整系数组的相位调整单元（130-1,130-2），以便调整导频信号 传输时机。 导频传输控制单元根据偶数子载波组和奇数子载波组之间的导频发送定时来区分发送天线的顺序。 在接收侧，针对发送天线和子载波组的每个组合提取不受路径间干扰影响的路径。 根据提取的路径计算信道估计值，以提高信道估计精度。

公开(公告)号：US20100238818A1

公开(公告)日：2010-09-23

申请号：US12682201

申请日：2008-09-10

申请人： Shinsuke Takaoka ,  Akihiko Nishio

发明人： Shinsuke Takaoka ,  Akihiko Nishio

IPC分类号： H04L12/26

CPC分类号： H04L1/0026 ,  H04J11/0026 ,  H04J11/005 ,  H04L1/1671 ,  H04L1/1829 ,  H04L1/20

摘要： A wireless communication mobile station apparatus wherein the accuracy of measuring the communication quality can be improved. In this apparatus, a desired signal power measuring part (212) uses a reference signal received from a local-cell reference signal processing part (211) to measure the power of a desired signal addressed to the local apparatus. An interference signal power measuring part (214) uses a reference signal received from an other-cell reference signal processing part (213) to measure an other-cell interference signal power removable by retransmission. An interference power calculating part (215) then uses a reference signal received from the separating part (203), the desired signal power received from the desired signal power measuring part (212) and the removable-by-retransmission other-cell interference signal power received from the interference signal power measuring part (214) to calculate an interference power that is a sum of the removable-by-retransmission other-cell interference signal power and the noise power. A communication quality generating part (216) then uses the desired signal power (S) and the sum of the removable-by-retransmission other-cell interference signal power and the noise power to generate communication quality information of the signal addressed to the local apparatus.

摘要翻译： 一种可以提高测量通信质量的精度的无线通信移动站装置。 在该装置中，期望的信号功率测量部件（212）使用从本地单元参考信号处理部件（211）接收的参考信号来测量寻址到本地设备的期望信号的功率。 干扰信号功率测量部分（214）使用从其他小区参考信号处理部分（213）接收的参考信号来测量通过重传可以去除的其他小区干扰信号功率。 然后，干扰功率计算部（215）使用从分离部（203）接收的参考信号，从期望信号功率测量部（212）接收到的期望信号功率和可重发送的其他小区干扰信号功率 从所述干扰信号功率测量部（214）接收到的干扰功率，作为所述可重传的其他小区干扰信号功率与所述噪声功率之和的干扰功率。 通信质量产生部分（216）然后使用期望的信号功率（S）和可重传的其他小区干扰信号功率和噪声功率的和来产生寻址到本地设备的信号的通信质量信息 。

公开(公告)号：US20100199157A1

公开(公告)日：2010-08-05

申请号：US12680162

申请日：2008-09-30

申请人： Shinsuke Takaoka ,  Kenichi Kuri ,  Seigo Nakao ,  Akihiko Nishio

发明人： Shinsuke Takaoka ,  Kenichi Kuri ,  Seigo Nakao ,  Akihiko Nishio

IPC分类号： H03M13/09 ,  G06F11/00

CPC分类号： H04L1/1874 ,  H04L1/1819

摘要： There is provided a wireless communication device capable of improving a decoding performance by using an optimal selection criterion for a start address and a read direction in a circular buffer. An interlacer (13) writes an interleaved and interlaced bit sequence into a circular buffer (14). An RV decision unit (109) decides the read start address and read direction of the circular buffer (14) based on the number of non-transmitted systematic bits, the number of non-transmitted important parity bits, and/or the number of non-transmitted unimportant parity bits. A read control unit (110) controls the read start address and read end address of the circular buffer (14). A read unit (15) is controlled by the read control unit (110) to continuously read encoded bits from the circular buffer (14).

摘要翻译： 提供一种能够通过在循环缓冲器中使用用于开始地址和读取方向的最佳选择标准来提高解码性能的无线通信设备。 交错器（13）将交错和隔行比特序列写入循环缓冲器（14）。 RV判定单元（109）基于未发送的系统比特数，未发送的重要奇偶校验位的数量和/或非发送的重要奇偶校验位的数量来决定循环缓冲器（14）的读取开始地址和读取方向， 发送不重要的奇偶校验位。 读取控制单元（110）控制循环缓冲器（14）的读取开始地址和读取结束地址。 读取单元（15）由读取控制单元（110）控制以从循环缓冲器（14）连续读取编码的位。

公开(公告)号：US09113472B2

公开(公告)日：2015-08-18

申请号：US13814787

申请日：2011-07-12

申请人： Shinsuke Takaoka ,  Takashi Iwai

发明人： Shinsuke Takaoka ,  Takashi Iwai

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04W52/16 ,  H04W52/36 ,  H04W52/34 ,  H04L1/00 ,  H04L1/16

CPC分类号： H04W72/0473 ,  H04L1/0031 ,  H04L1/1607 ,  H04L5/001 ,  H04L5/0053 ,  H04L5/0094 ,  H04W52/146 ,  H04W52/16 ,  H04W52/242 ,  H04W52/262 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W72/042

摘要： Provided are a wireless communication terminal apparatus and a wireless communication method that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between the wireless communication terminal apparatus and a wireless communication base station apparatus. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.

摘要翻译： 提供一种无线通信终端装置和无线通信方法，其可以排除在无线通信终端装置与无线通信基站装置之间识别出不同的UL授权的参考格式的识别不匹配。 对于没有UL授权的CC中的PUSCH的PHR计算，使用用于计算具有与PUSCH相同的子帧号的另一个CC中的PHR的UL许可。 例如，对于子帧号=＃1，CC＃0的UL授权用于计算不存在UL授权的CC＃2的PHR。

公开(公告)号：US20130077466A1

公开(公告)日：2013-03-28

申请号：US13119813

申请日：2009-09-18

申请人： Shinsuke Takaoka ,  Masayuki Hoshino ,  Meguml Ichikawa

发明人： Shinsuke Takaoka ,  Masayuki Hoshino ,  Kenichi Miyoshi

IPC分类号： H04J11/00

CPC分类号： H04W72/0453 ,  G06F17/141 ,  H04J1/00 ,  H04J4/005 ,  H04J11/00 ,  H04L5/0041 ,  H04L27/2602 ,  H04L27/2628 ,  H04L27/2636 ,  H04W88/08 ,  Y10S370/916

摘要： Provided is a radio communication device which can reduce ISI caused by destruction of an orthogonal DFT matrix even when an SC-FDMA signal is divided into a plurality of clusters and the clusters are respectively mapped to discontinuous frequency bands. The radio communication device includes a DFT unit (110), a division unit (111), and a mapping unit (112). The DFT unit (110) uses the DFT matrix to execute a DFT process on a symbol sequence in a time region to generate a signal (SC-FDMA signal) of the frequency region. The division unit (111) generates a plurality of clusters by dividing the SC-FDMA signal with a partially orthogonal bandwidth corresponding to the vector length of some of the column vectors constituting the DFT matrix used in the DFT unit (110) and orthogonally intersecting at least partially. The mapping unit (112) maps the clusters to discontinuous frequency bands.

摘要翻译： 提供一种无线电通信装置，即使当SC-FDMA信号被划分为多个群集并且群集分别映射到不连续的频带时，其也可以减少由正交DFT矩阵的破坏引起的ISI。 无线通信装置包括DFT单元（110），分割单元（111）和映射单元（112）。 DFT单元（110）使用DFT矩阵对时间区域中的符号序列执行DFT处理，以生成频率区域的信号（SC-FDMA信号）。 分割单元（111）通过用对应于构成在DFT单元（110）中使用的DFT矩阵的一些列向量的矢量长度的部分正交带宽划分SC-FDMA信号并且在正交带宽上正交相交 最少部分。 映射单元（112）将簇映射到不连续的频带。

公开(公告)号：US08560910B2

公开(公告)日：2013-10-15

申请号：US12680162

申请日：2008-09-30

申请人： Shinsuke Takaoka ,  Kenichi Kuri ,  Seigo Nakao ,  Akihiko Nishio

发明人： Shinsuke Takaoka ,  Kenichi Kuri ,  Seigo Nakao ,  Akihiko Nishio

IPC分类号： H04L29/14

CPC分类号： H04L1/1874 ,  H04L1/1819

摘要： There is provided a wireless communication device capable of improving a decoding performance by using an optimal selection criterion for a start address and a read direction in a circular buffer. An interlacer (13) writes an interleaved and interlaced bit sequence into a circular buffer (14). An RV decision unit (109) decides the read start address and read direction of the circular buffer (14) based on the number of non-transmitted systematic bits, the number of non-transmitted important parity bits, and/or the number of non-transmitted unimportant parity bits. A read control unit (110) controls the read start address and read end address of the circular buffer (14). A read unit (15) is controlled by the read control unit (110) to continuously read encoded bits from the circular buffer (14).

摘要翻译： 提供一种能够通过在循环缓冲器中使用用于开始地址和读取方向的最佳选择标准来提高解码性能的无线通信设备。 交错器（13）将交错和隔行比特序列写入循环缓冲器（14）。 RV判定单元（109）基于未发送的系统比特数，未发送的重要奇偶校验位的数量和/或非发送的重要奇偶校验位的数量来决定循环缓冲器（14）的读取开始地址和读取方向， 发送不重要的奇偶校验位。 读取控制单元（110）控制循环缓冲器（14）的读取开始地址和读取结束地址。 读取单元（15）由读取控制单元（110）控制以从循环缓冲器（14）连续读取编码的位。